... spare parts sale (1)OEM for construction machinery with different brands. (2)Long casting and long lifespan.(3)Competitive price and best quality ... , bulldozer, mining machines and other machines.Casting processes: sand, investment, steel and precision castingMaterials: gray iron, ductile ... fabrication, wax welding, mold shell making, roasting, pouring, sand strip, surface treatment, put in storage and ...