GB/T 18615-2002 Non-alloyed and stainless steel fittings for corrugated flexible metallic hoses

GB/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7307-2000 GB/T 9115.1-2000 Steel pipe welding neck flanges with flat face or raised face GB/T 9115.2-2000 Steel pipe welding neck flanges with male and female face GB/T 9115.3-2000 Steel pipe welding neck flanges with tongue and groove face GB/T 9115.4-2000 Steel pipe welding neck flanges with ring-joint face GB/T 9118.1-2000 Loose hubbed steel pipe flanges with welding neck collar with raised face GB/T 9118.2-2000 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face GB/T 9119-2000 Slip-on-welding plate steel pipe flanges with flate face or raised face GB/T 9120.1-2000 Loose plate steel pipe flanges with welding neck collar with raised face GB/T 9120.2-2000 Loose plate steel pipe flanges with welding neck collar with male and female face GB/T 9120.3-2000 Loose plate steel pipe flanges with welding neck collar with tongue and groove face GB/T 9121.1-2000 Loose plate steel pipe flanges with weld-on collar with raised face GB/T 9121.2-2000 Loose plate steel pipe flanges with weld-on collar with male and female face GB/T 9122-2000 Loose plate steel pipe flanges with lapped end GB/T 14525-1993 General specification for corrugated metallic hose assemblies

ISO 10806:1994