JB/T 82-2015
  • 平面(FF)对焊钢制管法兰

    FF-Welded steel pipe flange

  • 突面(RF)对焊钢制管法兰

    RF-Welded steel pipe flange

  • 凹凸面(MF)对焊钢制管法兰

    MF-Welded steel pipe flange

  • 榫槽面(TG)对焊钢制管法兰

    TGWelded steel pipe flange

  • 环连接面(RJ)对焊钢制管法兰

    RJWelded steel pipe flange