resilient seated butterfly valves suppliers in china
resilient seated butterfly valves suppliers in china Material:
Body: 1).Cast iron ASTM A 126 CL.B/GG25
2). Ductile iron ASTM A 536 65-45-12/GGG40
3). Stainless steel ASTM A 351 CF8 CF8M
4). Carbon steel ASTM A216 WCB
Disc: 1).Ductile iron ASTM A 536 65-45-12/ GGG40
2). Stainless steel ASTM A 351 CF8 CF8M
3). Carbon steel ASTM A 216 WCB
4). Bronze ASTM B 148 C 954
5). Coated NYLON/PTFE