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