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