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