搜索：socket union

UPVC Plastic Single Union Ball Valve 3/4" to 4" with EPDM O-Ring Pn10 Socket/Threaded DIN Standard for Water Supply

20mm-110mm/1/2"-4" DIN/ASTM Standard OEM Factory Supply Plastic Single & Double Union Ball Valve Socket or Threaded PVC Ball Valve/Union Ball Valve

Single & Double Union Socket or Threaded Plastic PVC Butterfly Ball Valve