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