JB/T 84-2015
  • 突面(RF)对焊环板式松套钢制管法兰

    RF-Welding ring plate loose flange

  • 凹凸面(MF)对焊环板式松套钢制管法兰

    MF-Welding ring plate loose flange

  • 榫槽面(TG)对焊环板式松套钢制管法兰

    TG-Welding ring plate loose flange