... parts investment casting: material:stainless steel standard:ASTM.DIN.JJIS.BS ect stainless steel pump impeler parts investment casting:1.Quality standard: ... ISO9001:20002.Technique: silica sol technique3.Material: stainless steel,carbon steel,alloy steel etc4.Standard: ASTM,BS,DIN,JIS etc5.Production ... ,CF3,CF8M,CF3M,1.4308,1.4408,1.4404,SCS13,SCS14,CD4,5AA etc CS:C20, C40, C45, WCB, WCC ...