DN500 Check Valve
API 6D Swing Check Valve, ASTM A216 WCB, 20 Inch, 600 LB, RF
20 Inch 600 LB Swing Check Valve RF WCB API 6D Features 1. The swing check valve adopts a rotating opening...
20 Inch 600 LB Swing Check Valve RF WCB API 6D Features 1. The swing check valve adopts a rotating opening...