Gate Valve Cast Iron 1.WE CAN ACCORDING TO YOUR REQUEST PRODUCE OEM 2.WORKING ENVIRONMENT:W.O.G 3.WORKING TEMPERATURE:-20-200 1.body,bonnet,disc,handwheel:cast iron or cast steel with brass.2.seat seal ring:stainless steel or bronze with brass3.stem:stainless steel or bronze with brass4.production standard:JIS,ANSI,DIN,BS.JOCK....5.size:DN40-2000.