Valve part casting 1.Cast iron&cast steel,Aluminiu 2.ISO9001:2000,TS16949 ... mouldingLost foam castShell-core castElectric-furnace smelting2Grey ironcastingsASTM A48-No.20,25,30,35,40,45,50;ASTM A126-Class ... ;DIN- GS-C25(1.0619), GS-38(1.0416),GS-45(1.0446), GS-52(1.0552), GS-60(1.0558);JIS-SC410, ... 304;DIN-G-X6CrNi18 9(1.4308), G-X7Cr13(1.4001)G-X20Cr14(1.4027), 1.4408;JIS-SCS13, SCS 1, SCS 2, SCS 14A ...