1.
Hubbed socket welding steel pipe flanges with tongue and groove face for PN 5.0MPa (50 bar)
GB/T9117.7-1988PN5.0MPa(50bar)榫槽面带颈承插焊钢制管法兰
2.
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 1.6MPa (16 bar)
GB/T9116.16-1988PN1.6MPa(16bar)榫槽面带颈平焊钢制管法兰
3.
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 4.0MPa (40 bar)
GB/T9116.18-1988PN4.0MPa(40bar)榫槽面带颈平焊钢制管法兰
4.
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 5.0MPa (50 bar)
GB/T9116.19-1988PN5.0MPa(50bar)榫槽面带颈平焊钢制管法兰
5.
Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN2.5MPa (25 bar)
GB/T9116.17-1988PN2.5MPa(25bar)榫槽面带颈平焊钢制管法兰
6.
Hubbed socket welding steel pipe flanges with raised face for PN 10.0MPa (100 bar)
GB/T9117.4-1988PN10.0MPa(100bar)凸面带颈承插焊钢制管法兰
7.
Hubbed socket welding steel pipe flanges with raised face for PN 2.0MPa (20 bar)
GB/T9117.2-1988PN2.0MPa(20bar)凸面带颈承插焊钢制管法兰
8.
Hubbed socket welding steel pipe flanges with raised face for PN 5.0MPa (50 bar)
GB/T9117.3-1988PN5.0MPa(50bar)凸面带颈承插焊钢制管法兰
9.
Hubbed socked welding steel pipe flanges with flat face for PN 2.0MPa (20 bar)
GB/T9117.1-1988PN2.0MPa(20bar)平面带颈承插焊钢制管法兰
10.
Hubbed socket welding steel pipe flanges with male and female face for PN 5.0MPa (50 bar)
GB/T9117.5-1988PN5.0MPa(50bar)凹凸面带颈承插焊钢制管法兰
11.
Steel pipe welding neck flanges with tongue and groove face for PN 1.6MPa (16 bar)
GB/T9115.24-1988PN1.6MPa(16bar)榫槽面对焊钢制管法兰
12.
Steel pipe welding neck flanges with tongue and groove face for PN 15.0MPa (150 bar)
GB/T9115.30-1988PN25.0MPa(250bar)榫槽面对焊钢制管法兰
13.
Steel pipe welding neck flanges with tongue and groove face for PN 4.0MPa (40 bar)
GB/T9115.26-1988PN4.0MPa(40bar)榫槽面对焊钢制管法兰
14.
Steel pipe welding neck flanges with tongue and groove face for PN 5.0MP (50 bar)
GB/T9115.27-1988PN5.0MPa(50bar)榫槽面对焊钢制管法兰
15.
Steel pipe welding neck flanges with tongue and groove face for PN 2.5MPa (25 bar)
GB/T9115.25-1988PN2.5MPa(25bar)榫槽面对焊钢制管法兰
16.
Steel pipe blank flanges with tongue and groove face for PN 1.6MPa (16 bar)
GB/T9123.24-1988PN1.6MPa(16bar)榫槽面钢制管法兰盖
17.
Integral steel pipe flanges with tongue and groove face for PN 10.0MPa (100 bar)
GB/T9113.20-1988PN10.0MPa(100bar)榫槽面整体钢制管法兰
18.
Integral steel pipe flanges with tongue and groove face for PN1.6MPa(16 bar)
GB/T9113.16-1988PN1.6MPa(16bar)榫槽面整体钢制管法兰