Die Casting’s Blog

NINGBO INNOVAW MECHANICAL is a professional supplier for casting and machined part which is widely used for Automobile, Medical, earthmover, petroleum, electricity Industry. Dedicating in long-term business with foreign customers from North America and west

Europe, we are exactly know what’s the customer requirement when they provide drawings and material specification. And our engineering can suggest the best process and technology to make the component or any design changing if necessary. Most of our products are exported to Canada, USA, and west Europe Germany, France, Italy, Norway, Finland, Switzerland, etc. and win good reputation among our customers. 

NINGBO INNOVAW cover different foundry and machining factory based on different casting process: investment casting, sand casting and pressure die casting, gravity casting, as well as precision machining with CNC machines. Our MOTTO is: Quality first, with competitive price and delivery in time. If you need some casting or machined part OEM or aftermarket, INNOVAW will be the best choice for you… 

More than 15 years of experience in high pressure die casting for aluminum & zinc, investment casting for alloy, carbon steel, stainless steel, ductile iron &grey iron sand casting, as well as precision maching and also tool & fixture. Factory registered with ISO9001:2000 system to be sure the quality as OEM/ODM supplier. Sister company with ISO/TS16949 certified to supply high quality automotive components Will keep a high standard for a valued added service to its international customers. 

INNOVAW Die Casting is a professional manufacturer for Die Casting, Pressure Die Casting,aluminum die casting, Investment Casting,Sand casting,Iron casting,CNC machining and machined part which are widely used for Automobile, Medical, earthmover, petroleum, electricity Industry. auto bearings , Iron casting 

The other detailed products in our company include Mould design,Die casting,Zinc Die Casting,Die casting raw material,Aluminum Casting Process Comparison,Aluminum gravity casting & sand casting, Iron Sand Casting,Precision CNC Machining,Surface Finishing,Lighting Industry Components,Heat Sink & Air Compressor Components
Automotive Components,Dia 110/125/135/140/160 Motor Housing,Precision CNC Machining Components,Gear Housing,Valve Balls and Valve Industry,
Truck and Forest Machinery Components,Quick Coupling Series .

MetalCasters have the luxury of choosing between several casting methods toaccomplish their goals. Often times the metal caster chooses one method andsticks with it for several years until need directs him to another. Of course,there are those adventurous few who like to sample each casting method to findthe best fit. Sure, sand casting might be the most popular but what about LostFoam or?Investment? What about Die casting?Die casting is used by industrial foundries and manufacturers to createpractically anything and everything, such as die cast cars. Many smallfoundries, like the one in your garage, backyard, of workshop may find that diecasting is really just not economical. But who said that having fun and tryingnew things was ever economical? The process of Die Casting involves a simpleconcept. The molten metal is injected with high pressure into the mold or moldcavities.

The mold used in die casting can have several small civilities ofeither the same pattern or different pattern. The name Die Casting comes from the molds which are called dies. These moldsare reusable and are often made from steel but other alloys can be used as longas they can withstand high pressure. The reason dies must be created from metaland not from sand or other material is due to the high amount of pressure usedto get the molten metal into the mold. If sand molds were used in a Die castingprocedure then the mold would crumble.

There are plenty of advantages of usingdies in a casting procedure which makes this method desirable for anyonewishing to create a high volume of similar castings.Die casting is perfect for anyone that needs to make a lot of the same thingwithout any quality or pattern deviation. This is especially helpful in certainindustries where quantity and quality count. Many hobbyists may have no use fordie casting on a practical basis but will often try at least one Die castingfor the sake of trying.There are two types of machines used in the Die Cast procedure. These machinesare essentially the same and are called the Hot-chamber and the Cold-chamber. The Hot-chamber machine melts the alloy and feeds it into a section of themachine referred to as the gooseneck.

A piston then forces the alloy into themold. A separate furnace is not needed but the draw back of this is that metalswith higher melting points can not be used. The Cold-chamber is used for metals that can not be used by the Hot-chambersuch as aluminum and copper. A separate furnace is needed to melt the alloywhich is then poured into the injection cylinder and then shot into the mold.The advantages of using Die casting vary but the most noticeable advantages arethe repeated quality, smooth casting surface, and the quick production ofcasts.

While the initial cost of Die Casting exceeds several of the othercasting procedures, those that need a high number of casts in the shortestamount of time possibly will benefit greatly from the investment. Die casting is commonly used to create commercial goods as it yields a highvolume. The molds, or dies, used vary in life cycle depending upon the materialused to create the die. The die can have one cavity or several?cavitiesdepending upon the need. Everyone should try die casting at least once if they can afford the initialcost. Besides, who knows when you’ll need a small battalion of metal soldierswhich can be made quickly and easily with die casting.

T/X Series Cylinder,Pepper spray system

Steel casting is a manufacturing process in which molten metal is poured into a mold, allowed to solidify within the mold, and then the mold is broken and the solid piece is taken out. Casting is used for making parts of complex shape that would be difficult or uneconomical to make by other methods.

In other words, it is a specialized form of casting involving various types of steel. Steel castings are used when cast irons cannot deliver enough strength or shock resistance.

Examples of items that are steel castings include: hydroelectric turbine wheels, forging presses, gears, railroad car frames, valve bodies, pump casings, mining machinery, marine equipment, and engine casings.

Steel castings are categorized into two general groups: carbons steel and alloy steel.They are especially adapted for parts that must withstand wear, shocks or heavy loads. They are stronger than wrought iron, cast iron or malleable iron and are very tough.

Types of Casting
1.Plain Carbon steel Castings
2.High Alloy Steel Castings
3.Manganese Steel Castings
4.Hi Chrome Castings
5.Ni-Hard Castings
6.SG Iron Castings
7.Stainless steel Castings
8.Heat Resistant Cast Steel

Heat treatmentHigh alloy Steel castings can be heat treated to bring about:
1.the diffusion of carbon or alloying elements,
2..softening,
3.hardening,
4.stress relieving,
5.toughening,
6.improved machinability,
7.increased wear resistance,
8.removal of hydrogen entrapped at the surface of the casting.

Casting is a manufacturing process by which a molten material such as metal or plastic is introduced into a mold, allowed to solidify within the mold, and then ejected or broken out to make a fabricated part. Casting is used for making parts of complex shape that would be difficult or uneconomical to make by other methods, such as cutting from solid material.

Die Casting, otherwise known as Permanent Mold Casting, is a process in which the molten material is forced into a permanent mold. This process is usually accomplished by using high pressure injection systems.

Gravity Die Casting uses the force of gravity, instead of high pressure means, to fill a permanent mold, or die, with molten material.

So do you know what are the materials for gravity die casting?
Gravity Die Casting is a manufacturing process that involves pouring molten material into a permanent mold in order to produce metal parts which are built to tight tolerances.

The molten materials can be Aluminum, Pewter (or other so called white or pot metals), Zinc or an alloy of Zinc mixed with an amount of copper and aluminum. Basically, any metals that have a lower melting point than steel can be used for Gravity Die Casting.

The permanent mold used in Gravity Die Casting is nearly always built of Steel. This Steel is usually hardened and polished to a high mirror like quality before it’s put into use. The exception to Steel Molds are Graphite Molds which are used with less frequency due to the difficulty and health risks involved with machining Graphite.

Die casting is a process by which molten metal is forced by a plunger or compressed air into a metallic die and the pressure maintained until the metal has solidified. Die castings are accurate, are sharply outlined, have a good surface finish, and can be made in complicated designs. Zinc, aluminum, and magnesium alloys are the principal metals used. The high cost of the die usually limits the process to large-scale, high-speed production. Typical products are carburetor bodies and zippers. Type-casting machines are specialized die-casting machines.

Now let us talk about the manufacturing process.
Casting is a manufacturing process by which a liquid material such as a suspension of minerals as used in ceramics or molten metal or plastic is introduced into a mould, allowed to solidify within the mould, and then ejected or broken out to make a fabricated part. Casting is used for making parts of complex shape that would be difficult or uneconomical to make by other methods, such as cutting from solid material.

Casting may be used to form hot, liquid metals or meltable plastics (called thermoplastics), or various materials that cold set after mixing of components such as certain plastic resins such as epoxy, water setting materials such as concrete or plaster, and materials that become liquid or paste when moist such as clay, which when dry enough to be rigid is removed from the mold, further dried, and fired in a kiln or furnace.Substitution is always a factor in deciding whether other techniques should be used instead of casting. Alternatives include parts that can be stamped out on a punch press or deep-drawn, forged, items that can be manufactured by extrusion or by cold-bending, and parts that can be made from highly active metals.The casting process is subdivided into two distinct subgroups: expendable and nonexpendable mold casting.

There are four major steps in the die casting process. First, the mold is sprayed with lubricant and closed. The lubricant both helps control the temperature of the die and it also assists in the removal of the casting. Molten metal is then shot into the die under high pressure; between 10—175 MPa (1,500—25,000 psi). Once the die is filled the pressure is maintained until the casting has solidified. Finally, the die is opened and the shot (shots are different from castings because there can be multiple cavities in a die, yielding multiple castings per shot) is ejected by the ejector pins. Finally, the scrap, which includes the gate, runners, sprues and flash, must be separated from the casting(s). This is often done using a special trim die in a power press or hydraulic press. An older method is separating by hand or by sawing, which case grinding may be necessary to smooth the scrap marks. A less labor-intensive method is to tumble shots if gates are thin and easily broken; separation of gates from finished parts must follow. This scrap is recycled by remelting it.Approximately 15% of the metal used is wasted or lost due to a variety of factors.

The high-pressure injection leads to a quick fill of the die, which is required so the entire cavity fills before any part of the casting solidifies. In this way, discontinuities are avoided even if the shape requires difficult-to-fill thin sections. This creates the problem of air entrapment, because when the mold is filled quickly there is little time for the air to escape. This problem is minimized by including vents along the parting lines, however, even in a highly refined process there will still be some porosity in the center of the casting.

Most die casters perform other secondary operations to produce features not readily castable, such as tapping a hole, polishing, plating, buffing, or painting.

Pore-free casting processWhen no porosity is required for a casting then the pore-free casting process is used. It is identical to the standard process except oxygen is injected into the die before each shot. This causes small dispersed oxides to form when the molten metal fills the dies, which virtually eliminates gas porosity. An added advantage to this is greater strength. These castings can still be heat treated and welded. This process can be performed on aluminum, zinc, and lead alloys.

Heated-manifold direct-injection die castingHeated-manifold direct-injection die casting, also known as direct-injection die casting or runnerless die casting, is a zinc die casting process where molten zinc is forced through a heated manifold and then through heated mini-nozzles, which lead into the molding cavity. This process has the advantages of lower cost per part, through the reduction of scrap (by the elimination of sprues, gates and runners) and energy conservation, and better surface quality through slower cooling cycles.

Sand casting is utilized to make large components of iron, Bronze, Brass and Aluminum. Melted metal is poured into a mould cavity made out of sand. Patterns: The cavity in the sand is made by utilizing a pattern (a rough duplicate of original) which are generally made of wood and rarely of metal. The cavity is contained in an aggregate housed in a box called the flask. Core is a sand shape put into the mould to produce the inner features of the component like holes or internal passages. Core is put in cavity to form holes of the desired shapes. Core print is the portion added to pattern core or mould which is utilized to find and support the core within the mould. A riser is an extra cavity made in mould to hold excess molten material. The reason of this is to feed the molten metal to the mould cavity and as metal solidifies and shrinks and therefore, prevents holes in the main casting. In a two part mould, the upper half is called cope and the lower half is called drag. The parting line separates cope and drag. The drag is filled with sand in part and the core print, the cores and the gating process are put close to the parting line. The cope is then joined to drag and sand is poured covering the pattern, core and the gating system. The sand is made compact by vibration and mechanical method. After that the cope is separated from drag and the pattern is removed carefully. The purpose is to remove the pattern without breaking the mould cavity. This is facilitated by designing a draft, a slight angular offset from the vertical to vertical surface of the pattern. This is generally of 1° or 1.5 mm (0.060 in) whichever is more. The rougher the surface of design, the more the draft to be given. Sprues and runners: The melted material is poured in the pouring cup, it is part of gating process that provides the melted metal to the mould cavity. The vertical part of gating process connected with pouring cup is called sprue and the horizontal part is called the runners and lastly to the multiple points where it connects to the mould cavity is called gates. Alongside there are extensions to the gating process called vents that give the way for built-up gases and the displaced air to vent to the atmosphere. The cavity is generally made oversize to allow for metal contraction as it cools down to normal temperature. These are linear factors and apply in each direction. These shrinkages for allowance are approximate because the exact allowance is decided by shape and size of casting. Besides different components of casting need separate shrinking allowances. Sand casting is a way of making rough metal castings utilizing a mould generally made of sand made around a duplicate of the part to be cast that is removed once the sand becomes compact. Castings made this way may be refined by hammer preening, shot preening, polishing forging, plating, rough grinding machining sand castings not refined further are easily recognizable by sand like texture given by the mould. Therefore, the accuracy of part has to be improved by polishing or grinding. And the mould is broken after every casting to take out the part, a fresh mould is to be made for every casting. Paths for metal pouring during pouring into mould casting are called the runner system and include sprue, various feeders which maintain a good metal ‘feed’ and ‘runners’ and ingates which attach the runner system to cavity. Gas and steam made during casting exit via the permeable sand and riser are added either in the pattern itself or a separate pieces.

 The investment casting process begins by creating an injection die that meets the requirements of the specific project. Once made, the die inserts wax that forms the desired patterns; a mold is created when the pattern attaches to a central wax sprue. Molten metal is then dispensed into the sprue.After dipping the wax several times into ceramic slurry, sand is added to the surface. Once the desired thickness is achieved, the wax is removed using an autoclave, leaving the impression of the required casting. The chosen metal is poured into the impression after the shell is heated in a furnace.

After the shell is removed with water blasting, each individual part is removed. Because the cast metal parts are still connected to the sprue, they are removed through the process of cold-break. In most cases, some degree of post-casting machining is also necessary to complete the investment casting process

Die castings are made from alloy tool steels. They have at least two sections to permit the removal of castings, the fixed die, or cover, half and the ejector die half. Some dies also have parts, such as removable slides and cores, to produce holes, threads and other desired shapes in the casting. Openings in the die allow the addition of coolant and lubricant. Dies are either air- or water-cooled. The cooling of the die provides for quick cycling and is one of the factors in the high rate of production. It also gives a fine grain structure and superior strength and finish to the metal castings. The molds used by die casting manufacturers will perform up to 5 million shots in its lifetime.
 
The services provided by die casting manufacturers have many advantages over other processes. Die casting is efficient and economical, offering a wide range of durable shapes and components. Little or no machining is required after die castings are made because the process provides very close tolerances for even complex part shapes. Metal castings can be easily plated or finished. Die castings are dimensionally stable and heat resistant. These lightweight parts, even while having thin walls, retain the strength of an alloy because they do not consist of separate parts welded together.
 
Die casting manufacturers utilize a number of materials, including zinc, aluminum, magnesium, copper, lead and tin. Zinc is the easiest alloy to cast, has a low melting point and is economical and easily palatable. Zinc also has high impact strength, offers high ductability and promotes long die life. Aluminum alloys possess high dimensional stability for complex shapes and thin walls. Aluminum die casts are of a lightweight alloy that has good corrosion resistance, mechanical properties, high thermal and electrical conductivity and strength at high temperatures. Along with being the easiest alloy to machine, magnesium is also the lightest typically die cast. Magnesium die casting also has excellent strength-to-weight ratio. Copper is one of the hardest alloys and offers the highest mechanical properties of any other alloy that is cast. A dimensionally stable alloy, copper has high corrosion and wear resistance and strength approaching that of steel parts. Lead and tin are used for special forms of corrosion resistance. Although they have high density, parts with extremely close dimensions are able to be formed from lead castings and tin castings.

Although power from the casting there is still a considerable gap between us, but through this exhibition we can see that the foundry industry in China and strengthen the clues and exciting!” Recently held in Shanghai 2008 China International Expo on casting, China Machinery Industry Special Adviser to the Federation, honorary president of China Foundry Association of Deputy Lu Yansun, told reporters he has spoken the perception of the show.
According to reports, at the same time held the 9th China International casting, forging and industrial furnaces exhibitions, the 2008 China International Casting the 11th China International Fair and Exhibition metallurgical industry, nearly 30 countries and regions thousand exhibitors Exhibitors, the area of nearly 60,000 square meters, nearly 10,000 pieces of exhibits, attracted 62 countries and regions in the professional audiences and buyers. China Machinery Industry Federation executive vice president of China Foundry Association, chairman of JIA Cheng-ping said that the current scale of the exhibition, the exhibition record levels since the new record. It reflects the prosperity of China’s foundry market, also demonstrated the continuous progress of China foundry industry of the track.
Progress into the most obvious casting bright spot
According to show excellent casting named head of the Expert Group, China Foundry Association executive vice president and secretary-general Zhang Bo, the fair number of exhibitors of casting products several times more than previous sessions, Shen Ping declare the outstanding casting reached 200 Variety. 15 experts selected from the 56 outstanding items, many of them fill the gaps and reach a world-class level of casting, this session has become the largest exhibition of highlights.
Group share in the limited liability company’s pavilion, the fair’s two largest castings, weighing 43 tons and 37 tons of 1 million kilowatts of supercritical steam turbine pressure in the cylinder, super ductile iron castings to attract a large number of visitors Eyes. Peng, chairman of the company who told reporters that this is their self-made, and have reached the advanced level abroad.
This power station to casting, casting machine, engine castings, compressor castings products of the four major professional casting enterprises, casting this year’s production will reach 45,000 tons, of which 60 per cent of the exports. Mr Fan said that enterprises in the development process to deal with the fierce market competition, it is necessary to absorb the energy, materials, the rising cost pressures, we must develop, produce high value-added products. To that end, sharing always adhere to independent innovation, the annual investment in research and development costs accounted for sales income of 5% to 8%. The enterprise also has been the ultimate return: Many world-renowned machine tool enterprises in the share purchase castings; domestic enterprises in the Three Gorges hydropower generating units to the three turbine blades, have shared, and they cast iron gas turbine, Steel Castings Taoshu the annual delivery of more of the world’s market share of 55 percent to 60 percent. The next step is shared by three to five years to build a world-class R & D center, and further promote enterprises in technological innovation. In strive to casting output, sales revenue reached 1.2 billion to 1.5 billion yuan, while profit margins have remained at double-digit levels.
Deputy Lu Yansun, as reporters arrived in Shanghai honorary chairman of Acer Power Plant Equipment Co., Ltd. Zhuduan the booth, executive vice president of the company went up to Yu Liang Jun, proudly pointing to the front of high-pressure gas turbine Menfa Shell said: “You give us the task completed.” According to reports, in March 2007, Deputy Lu Yansun, during an inspection tour to Hong Gang: China’s 1 million kilowatts Ultra-supercritical steam turbine casting is still the bottleneck, the dependence on imports, not only for the highest bid and Difficult to protect cargo, constraining the development of China’s power station equipment that can be added Wang Gang test. Acer result of using its steel castings developed more than 50 years of experience in power plant, after one year of efforts, finally have been fruitful, and reached a world standard. Yu Liang-jun said that the import substitution, a set of such a large number of domestic savings casting Exchange. And the number of good economic balance, its significance is difficult to measure the number, the first to break the foreign monopoly, and the other is in the process of independent innovation fostered a contingent of technical personnel, this is the most valuable asset. Wang Gang will be the next step based on market demand and further increase production.
In addition to supporting the large-scale power station equipment casting a prominent progress, from the exhibition can also see that in the automotive industry driven by the rapid development of China’s automotive castings also achieved gratifying results. As demonstrated at the FAW Foundry’s next-generation engine block, cylinder head, a high-strength thin wall castings, its thickness only 2.5 ~ 3.0 mm, one-time recognition by Volkswagen, Shanghai Volkswagen supply 210,000 / year . Chongqing Qingling Casting Co., Ltd. demonstrated their common-rail-to medium-sized commercial vehicle engines independently developed the key block castings, cylinder head, to meet the EU Ⅳ, Europe Ⅴ emissions requirements. The company General Manager Wu Ji-Qing to the press, now Qingling annual overseas export market of the engine block, cylinder head castings reach tens of thousands of sets, but also through years of “quality climbing”, the casting of non-performing rate of increase lower than 1500ppm, their goal is to control the following in 500 ppm.
Casting around products, foundry casting equipment and materials business enterprises in the exhibition have also introduced the latest achievements. As many world-renowned casting equipment vendors not only display the advanced equipment, but also to provide users with the relevant software used in the system batteries, casting, casting processes, such as cleaning up the industrial robot in the show is also popular concern. One industry expert told reporters that the huge China market to attract, the number of foreign exhibitors casting equipment enterprises have been set up and build factories in China.
Casting has 39 production of domestic and foreign manufacturers on display a variety of Sand, sand core binder, the original sand, paint and liquid metal filter, various ferroalloy, riser material, Shotblast materials, the exhibition area of 1620m2, the Jinan-quan Group Co., Ltd. of which the size of the booth, product exhibitions as many as the most堪称the fair, showing the casting material production enterprises in China’s strength.
According to professor of Qinghua University, China Foundry Association and vice president of Tien-Yu Huang, the Jinan-quan is the world’s largest supplier of casting material. At present, the company’s products occupy casting material of similar products of domestic market share of more than one-third and exported to Europe, America, Southeast Asia, more than 50 countries and regions, which Furan Resin annual sales of nearly 100,000 tons, ranking first in the world 1.
Energy-saving emission reduction targets of the new foundry industry
The show left the deepest impression is that reporters, come to every booth, every interviewer will be referred to the “energy-saving emission reduction,” “green cast” of the topic. China Foundry Association, chairman of JIA Cheng-ping pointed out that casting equipment manufacturing industry is the basis of industry, revitalize the equipment manufacturing industry is an important guarantee for one, but also heavy pollution, high energy consumption of one of the industries. How to promote energy-saving industry-wide emission reduction and building a resource-saving, environment-friendly enterprises casting before us is important and urgent issue.
Grace Steel Power Plant Equipment Co., Ltd. Zhuduan the panels on Yinzhao enterprises large picture factory environment, tree-yin, beautiful and clean, completely changed the people of the traditional casting enterprises Zangluan Chai impression.
Yu Liang-jun told reporters that three years ago, the Acer steel or black smoke everywhere, You Zangyou chaos of a traditional casting business outlook. After rectification of Today, Acer has become a garden-like steel enterprises. Environmental protection equipment investment in fixed assets of enterprises accounted for 30 percent more than a year of environmental protection equipment maintenance costs are around 1.5 million. Smoke all the recovery, the noise dropped to below national standards, also part of sludge recycling. Enterprises not only through the ISO9000, ISO14000, also received ohsas18000 occupational health and safety certification. Enterprises in the energy-saving emission reduction on the achievements of the United Nations also attract industrial organizations and Brazil, India and other overseas counterparts to have visited. Yu Liang Jun clearly remember one engage in a cast of 60 Japanese enterprises to visit the elderly, sheds tears, he sighed with emotion casting enterprises can have such beautiful and clean environment. Yu Liang Jun proud to say that we factory environment is a world-class. This has also allowed the staff enhanced self-confidence, improve their quality. Clean and beautiful environment have become the best advertising business, orders to pour.
In addition to the production process of environmental protection, energy saving technology is more and more attention to the area of renewable energy has become a hot investment casting enterprises.
Jiangyin Jixin Machinery Co., Ltd. has set its sight on the beginning of construction of wind power castings, from the 2005 production with an annual output of 10,000 tons, to 2006’s 20,000 tons in 2007, the 40,000 tons this year will reach 100,000 Tons of output. The company chairman package with the company displayed at the huge wind turbine wheel group, told reporters that the largest companies can now do two-megawatt wind power unit of the wheel, but to achieve the mass production. Preparation is now 2.5 MW and 3 MW. If this production to 100,000 tons, we will be the world’s wind power industry casting well-deserved lead.
Regional construction industry focused on the development of the next step
Zhang Bo told reporters, according to incomplete statistics, at present, the foundry industry has hundreds of industrial clustering, the collective appearance at the show by including Shanghai, Tianjin, Shandong, Zhejiang, Henan, Liaoning, Botou, Anhui Ningguo, more than 10 local outreach mission, the number and scale over the past shows that the Chinese foundry industry’s regional construction boom. China has just received a plaque cast iron base of the 18 cast iron enterprises are also the first joint exhibition. They said that they will take this opportunity to focus on the needs of casting enterprises, enhance research and development capabilities, improve product quality, while the full implementation of national energy consumption and environmental emissions reduction policies, to serve for casting enterprises.
According to the Secretary-General Zhu Botou Casting Association, the Association for the lead in local organizations, Botou exhibitors have seven enterprises, businesses reflect the good effect, has reached more than 60 cooperation intention. In addition, Botou City vice mayor also led to the local Bureau, Bureau of Commerce and other relevant departments in charge of the 13 people, more than 100 local business representatives will visit to learn.
He said that Botou is the history of our country’s three major foundry town, has 1,300 years of history, there are currently more than 700 casting enterprises, is the local pillar industries. Botou the past to produce export-based art castings, is now being machine tools, automobile and other machinery castings transfer. I wish the Secretary-General said that the next step they will cast Concorde in China with the help of industry experts properly formulate medium and long-term development plan, adjust the product structure, increase the share of high-end products, companies will also integrate and eliminate backward and further enhance concentration , The leading backbone enterprises bigger and stronger. Hope that the near future Botou casting with a new look to show people.