Swing check valve 
Body :A216 WCB
Bonnet :A216 WCB
Rocker :A216 WCB
Pin :A270 410
Fork part :A216 WCB
Stud :A194 B7
Nut :A194 2H
Note:
1.All of valve part material comply with ASTM standard.
2.Above material is our normal one.If client has special requirment for it,we can choose material as per detailed site condition.