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