... manufacturer 5 fundry and machining factory Name: submersible water pump We can make all the pump parts with ... , Sand casting, Investment casting, Silicasol castingCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Special ... service (casting, machining and surface treatment) make lower price possible.(7) Advanced-level equipments.(8) Full material testing ...