1,ASTM quick closing valve 2,cast iron 3,shipbuiling 4,as ur request Material:cast iron,bronze,cast steel,ductile iron,stainless steel,SS316,ANSI316 and ... so on.Size:15A-1200AStandard:ISO,JIS,DIN,ASTM,CB ... or suggestion,make me quote best competitive price to u. cast steel quick closing valve