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