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