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