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