1 Cast iron pump parts 2 OEM service 3 Two foundries,one machining factory 4 All the pump parts can be made ... . Qingdao Xin Yang Machinery Co., Ltd specializes in pump, pump parts and other machinery parts manufacturing for 6 years, ... casting, Sand casting, Investment casting, Silicasol castingCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Special steel, ...