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Shanxi Qinghui Machinery Manufacturer Co.,LTD. is a professional manufacturer specialized in producing Investment Casting, Sand Casting for iron casting and steel casting. Our hot products include the followings: 1): steel casting: alloy steel casting, carbon steel casting, high manganese steel casting, manganese steel casting, stainless steel casting etc. 2): Iron casting: ductile iron casting, grey iron casting etc. The main application of our products: a): autoparts: brake disc, brake drum, case casting, bogie bracket welding assembly, bogie axle, leaf spring, cushion housing, spring saddle(central rotating seat )gearbox casting, wheel spider and so on. b): Valve casting: cast iron valve, steel casting valve, pump casting, valve body casting; c): marine parts casting: anchor chain wheel, cylinder head, safety valve, piston gudgeon pin, piston rod, oil scraper ring, crosshead pin, crosshead bearing/slipper and all kinds of hardware and tools etc.d): railway parts: axle box, bogie frame, bogie bolster, railway wagon parts, railway coupler/hook etc.