BV4000W- Wafer Type Butterfly ValveBody:CI, DI, WCB, SSDisc:DI, SS304, SS316, Aluminum BronzeStem:WCB, SS416, SS304, SS316Seat:NBR, EPDM, PTFE, VITONFace to face dimension:GB 12238, BS5155API609, MSS ... ...
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butterfly valve, check valve ...
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