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