... cast,lost wax casting 4.ASTM,DIN,JIS,BS;ISO:NF Butterfly valve body and disc CastingsCast ... bronze alloyMethod:Sand cast,lost wax castingStandard:ASTM,DIN,JIS Quality certificate:ISO9001:2000,TS16949We ... );JIS-SCMn3, SCW480, SCSiMn2, SCCrM3, SCMnCR3;ASTM-LCCUNS-J02505, J13048NF-G20M6, G35CrMo4Soluble glass sand mouldingResin ... 16Fax: 86 411 82530206Skype: xuekui87 Butterfly valve body and disc castings