... service time Material: Cast Iron, SS,Model:High qualityOEMstainless steel pump impelleron the basis of introducing and absorbing the advanced ... covered comprehensive performance. Through continuous learning and innovation,Hebei Chenming Pumps factory have developed the pump industry KmTBCr26, Cr15Mo3, Cr36, ... pump parts ' life such as impeller, and sheath. high quality stainless steel pump impeller