... JIS,DIN,ASTM,BS OEM service available cast steel gate valveWe are a foundry which is ... available 3.Materials: stainless steel,cast iron,pig iron,carbon steel,alloy steel,non-ferrous,grey iron,ductile cast iron and so on 4 ... HeatTreatment,ect. descriptionmaterialstainless steel, cast iron, pig iron, carbon steel, alloy steel, non-ferrous, grey iron, ductile cast, aluminum alloy, ductile iron, brass, zinc ...