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
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
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
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
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
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
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
Steel pipe welding neck flanges with male and female face for PN 10.0MPa (100 bar)
GB/T9115.21-1988PN10.0MPa(100bar)凹凸面对焊钢制管法兰
Steel pipe welding neck flanges with male and female face for PN 15.0MPa (150 bar)
GB/T9115.22-1988PN15.0MPa(150bar)凹凸面对焊钢制管法兰
Steel pipe welding neck flanges with male and female face for PN 2.5MPa (25 bar)
GB/T9115.18-1988PN2.5MPa(25bar)凹凸面对焊钢制管法兰
Steel pipe welding neck flanges with male and female face for PN 4.0MPa (40 bar)
GB/T9115.19-1988PN4.0MPa(40bar)凹凸面对焊钢制管法兰
Steel pipe welding neck flanges with male and female face for PN 5.0MPa (50 bar)
GB/T9115.20-1988PN5.0MPa(50bar)凹凸面对焊钢制管法兰
Steel pipe welding neck flanges with male and female face for PN 25.0MPa (250 bar)
GB/T9115.23-1988PN25.0MPa(250bar)凹凸面对焊钢制管法兰
Integral steel pipe flanges with male and female face for PN 1.6MPa (16 bar)
GB/T9113.9-1988PN1.6MPa(16bar)凹凸面整体钢制管法兰
Integral steel pipe flanges with male and female face for PN 10.0MPa (100 bar)
GB/T9113.13-1988PN10.0MPa(100bar)凹凸面整体钢制管法兰
Integral steel pipe flanges with male and female face for PN 2.5MPa (25 bar)
GB/T9113.10-1988PN2.5MPa(25bar)凹凸面整体钢制管法兰
Hubbed slip-on-welding steel pipe flanges with male and female face for PN 5.0MPa (50 bar)
GB/T9116.14-1988PN5.0MPa(50bar)凹凸面带颈平焊钢制管法兰
Hubbed slip-on-welding steel pipe flanges with male and female face for PN 2.5MPa (25 bar)
GB/T9116.12-1988PN2.5MPa(25bar)凹凸面带颈平焊钢制管法兰