黄冈Half nipple
黄冈Nipple
黄冈Long nipple
黄冈Half thread long nipple
黄冈Hexagon nipple
黄冈Hexagon F/M nipple
黄冈Hexagon reducer nipple
黄冈Hose nipple L-type
黄冈Hose connector whj
黄冈Hose connector WHS
黄冈Hose joint WRH for welding
黄冈Round water pipe joint wrhn
