sand casting/cast iron knife gate valve body Standard:DIN,ASTM,JIS etc. OEM service offered certificate of ... are most professional on gate valve and knife valve castings.Name: cast iron knife gate valve body 1) Material: gray iron, ductile iron 2) Size: 2"---60 ... Manufacture standards: API/ANSI, BS4504, JIS, MSS, ISO, EN, DIN, NF 7) Machining: lathe, drilling machine, milling machine, boring machine ...