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