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