... and machining factory Name: submersible water pump We can make all the pump parts with various kinds of materials. ... Machinery Co., Ltd specializes in pump, pump parts and other machinery parts manufacturing for 6 years, with two foundries ... , Sand casting, Investment casting, Silicasol castingCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Special steel ...