Hubbed socket welding steel pipe flanges with tongue and groove face for PN 0MPa (50 bar)
GB/T917-1988PN0MPa(50bar)榫槽面带颈承插焊钢制管法兰
Steel pipe welding neck flanges with tongue and groove face for PN 5MPa (25 bar)
GB/T9125-1988PN5MPa(25bar)榫槽面对焊钢制管法兰
tongue and groove face
榫槽面;榫槽面
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 0MPa (40 bar)
GB/T9118-1988PN0MPa(40bar)榫槽面带颈平焊钢制管法兰
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 0MPa (100 bar)
GB/T9120-1988PN0MPa(100bar)榫槽面带颈平焊钢制管法兰
Loose plate steel pipe flanges with welding neck collar with tongue and groove face for PN 40MPa (40 bar)
GB/T916-1988PN0MPa(40bar)榫槽面对焊环松套板式钢制管法兰
Steel pipe welding neck flanges with tongue and groove face for PN 6MPa (16 bar)
GB/T9124-1988PN6MPa(16bar)榫槽面对焊钢制管法兰
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 6MPa (16 bar)
GB/T9116-1988PN6MPa(16bar)榫槽面带颈平焊钢制管法兰
Steel pipe blank flanges with tongue and groove face for PN 6MPa (16 bar)
GB/T9124-1988PN6MPa(16bar)榫槽面钢制管法兰盖
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 0MPa (50 bar)
GB/T9119-1988PN0MPa(50bar)榫槽面带颈平焊钢制管法兰
Steel pipe blank flanges with tongue and groove face for PN 0MPa (100 bar)
GB/T9128-1988PN0MPa(100bar)榫槽面钢制管法兰盖
Hubbed socket welding steel pipe flanges with tongue and groove face for PN 0MPa (100 bar)
GB/T918-1988PN0MPa(100bar)榫槽面带颈承插焊钢制管法兰
Integral steel pipe flanges with tongue and groove face for PN 5 MPa (25 bar)
GB/T9117-1988PN5MPa(25bar)榫槽面整体钢制管法兰
Steel pipe welding neck flanges with tongue and groove face for PN 0MP (50 bar)
GB/T9127-1988PN0MPa(50bar)榫槽面对焊钢制管法兰
Loose plate steel pipe flanges with welding neck collar with tongue and groove face for PN 5MPa (25 bar)
GB/T915-1988PN5MPa(25bar)榫槽面对焊环松套板式钢制管法兰
Asbestos rubber gaskets for steel pipe flanges with tongue and groove face
GB/T914-1988榫槽面型钢制管法兰用石棉橡胶垫片
Integral steel pipe flanges with tongue and groove face for PN 0 MPa (50 bar)
GB/T9119-1988PN0MPa(50bar)榫槽面整体钢制管法兰
Steel pipe welding neck flanges with tongue and groove face for PN 0MPa (150 bar)
GB/T9130-1988PN0MPa(250bar)榫槽面对焊钢制管法兰
Steel pipe welding neck flanges with tongue and groove face for PN 0MPa (40 bar)
GB/T9126-1988PN0MPa(40bar)榫槽面对焊钢制管法兰
Steel pipe blank flanges with tongue and groove face for PN 0MPa (150 bar)
GB/T9129-1988PN0MPa(150bar)榫槽面钢制管法兰盖