1.
Steel pipe blank flanges with raised face for PN 5.0MPa (50 bar)
GB/T9123.13-1988PN5.0MPa(50bar)凸面钢制管法兰盖
2.
Steel pipe blank flanges with raised face PN 2.0MPa (20 bar)
GB/T9123.12-1988PN2.0MPa(20bar)凸面钢制管法兰盖
3.
Steel pipe blank flanges with raised face for PN 4.0MPa (40 bar)
GB/T9123.11-1988PN4.0MPa(40bar)凸面钢制管法兰盖
4.
Steel pipe blank flanges with raised face for PN 25.0MPa (250 bar)
GB/T9123.16-1988PN25.0MPa(250bar)凸面钢制管法兰盖
5.
Steel pipe blank flanges with raised face for PN 10.0MPa (100 bar)
GB/T9123.14-1988PN10.0MPa(100bar)凸面钢制管法兰盖
6.
Steel pipe blank flanges with raised face for PN 2.5MPa (25 bar)
GB/T9123.10-1988PN2.5MPa(25bar)凸面钢制管法兰盖
7.
Steel pipe blank flanges raised face for PN 15.0MPa (150 bar)
GB/T9123.15-1988PN15.0MPa(150bar)凸面钢制管法兰盖
8.
Steel pipe blank flanges with raised face for PN 0.25MPa (25 bar)
GB/T9123.6-1988PN0.25MPa(2.5bar)凸面钢制管法兰盖
9.
Steel pipe blank flanges with raised face for PN 0.6MPa (6 bar)
GB/T9123.7-1988PN0.6MPa(6bar)凸面钢制管法兰盖
10.
Steel pipe blank flanges with raised face for PN 1.0MPa (10 bar)
GB/T9123.8-1988PN1.0MPa(10bar)凸面钢制管法兰盖
11.
Steel pipe blank flanges with raised face for PN 1.6MPa (16 bar)
GB/T9123.9-1988PN1.6MPa(16bar)凸面钢制管法兰盖
12.
Steel pipe blank flanges with male and female face for PN 4.0MPa (40 bar)
GB/T9123.19-1988PN4.0MPa(40bar)凹凸面钢制管法兰盖
13.
Steel pipe blank flanges with male and female face for PN 25.0MPa (250 bar)
GB/T9123.23-1988PN25.0MPa(250bar)凹凸面钢制管法兰盖
14.
Steel pipe blank flanges with male and female face for PN 2.5MPa (25 bar)
GB/T9123.18-1988PN2.5MPa(25bar)凹凸面钢制管法兰盖
15.
Steel pipe blank fanges with male and female face for PN 1.6MPa (16 bar)
GB/T9123.17-1988PN1.6MPa(16bar)凹凸面钢制管法兰盖
16.
Steel pipe blank flanges with male and female face for PN 10.0MPa (100 bar)
GB/T9123.21-1988PN10.0MPa(100bar)凹凸面钢制管法兰盖
17.
Steel pipe blank flanges with male and female face for PN 15.0MPa (150 bar)
GB/T9123.22-1988PN15.0MPa(150bar)凹凸面钢制管法兰盖
18.
Steel pipe blank flanges with male and female face for PN 5.0MPa (50 bar)
GB/T9123.20-1988PN5.0MPa(50bar)凹凸面钢制管法兰盖