Metal seated gate valve: 1)AWWA ,BS,DIN 2)Body:Ductile cast iron, ... 3)Stem:Stainless steel 4)Size:DN40-DN1000mm Metal seated gate valve 1)AWWA ,BS,DIN 2)Body:Ductile cast iron ... 3)Stem:Stainless steel 4)Size:DN40-DN1000mm Metal seated gate valve1)AWWA ,BS,DIN2)Body:Ductile cast iron,PN10/16 ...