1.
Steel pipe welding neck flanges with ring-joint face for PN10.0MPa (100 bar)
GB/T9115.33-1988PN10.0MPa(100bar)环连接面对焊钢制管法兰
2.
Steel pipe welding neck flanges with ring-joint face for PN 15.0MPa (150 bar)
GB/T9115.34-1988PN15.0MPa(150bar)环连接面对焊钢制管法兰
3.
Steel pipe welding neck flanges with ring-joint face for PN 2.0MPa (20 bar)
GB/T9115.31-1988PN2.0MPa(20bar)环连接面对焊钢制管法兰
4.
Steel pipe welding neck flanges with ring-joint face for PN 25.0MPa (250 bar)
GB/T9115.35-1988PN25.0MPa(250bar)环连接面对焊钢制管法兰
5.
STEEL pipe welding neck flanges with ring-joint face for PN 42MPa (420 bar)
GB/T9115.36-1988PN42.0MPa(420bar)环连接面对焊钢制管法兰
6.
Steel pipe welding neck flanges with ring-joint face for PN 5.0NPa (50 bar)
GB/T9115.32-1988PN5.0MPa(50bar)环连接面对焊钢制管法兰
7.
Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 5.0MPa (50 bar)
GB/T9116.22-1988PN5.0MPa(50bar)环连接面带颈平焊钢制管法兰
8.
Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 2.0MPa (20 bar)
GB/T9116.21-1988PN2.0MPa(20bar)环连接面带颈平焊钢制管法兰
9.
Steel pipe blank flanges with ring-joint face for PN 10.0MPa (100 bar)
GB/T9123.33-1988PN10.0MPa(100bar)环连接面钢制管法兰盖
10.
Steel pipe blank flanges with ring-joint face for PN 15.0MPa (150 bar)
GB/T9123.34-1988PN15.0MPa(150bar)环连接面钢制管法兰盖
11.
Steel pipe blank flanges with ring-joint face for PN 25.0MPa (250 bar)
GB/T9123.35-1988PN25.0MPa(250bar)环连接面钢制管法兰盖
12.
Steel pipe blank flanges with ring-joint face for PN 42.0MPa (420 bar)
GB/T9123.36-1988PN42.0MPa(420bar)环连接面钢制管法兰盖
13.
Steel pipe blank flanges with ring-joint face for PN 5.0MPa (50 bar)
GB/T9123.32-1988PN5.0MPa(50bar)环连接面钢制管法兰盖
14.
Steel pipe blank flanges with ring-joint face for PN 2.0MPa (20 bar)
GB/T9123.31-1988PN2.0MPa(20bar)环连接面钢制管法兰盖
15.
Integral steel pipe flanges with ring-joint face for PN 5.0MPa(50bar)
GB/T9113.22-1988PN5.0MPa(50bar)环连接面整体钢制管法兰
16.
Integral steel pipe flanges with ring-joint face for PN 42.0MPa (420 bar)
GB/T9113.26-1988PN42.0MPa(420bar)环连接面整体钢制管法兰
17.
Integral steel pipe flanges with ring-joint face for PN 25.0MPa (250 bar)
GB/T9113.25-1988PN25.0MPa(250bar)环连接面整体钢制管法兰
18.
Integral steel pipe flanges with ring-joint face for PN 10.0MPa (100 bar)
GB/T9113.23-1988PN10.0MPa(100bar)环连接面整体钢制管法兰