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Yongbao special steel valves (fujian )co .,lit, was built and commenced in June ,2005,where the annual design capacity of production reaches.1,500 tons for steel casts made of various carbon steel, stainless steel, and alloy steel, as well as the resin sand casting ,also reaches 5,000tons for precision investment casting via silicon-sol or sodinm-metasilicate process.The maximum weight per casting (capacity of equipment)is 10 tons while the maximum outer diameter of cast is 3,800mm ,the co***ny is the large...
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