We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Hubbed socket welding steel pipe flanges with raised face
WITHDRAWN published on 28.9.2000
Selected format:Hubbed socket welding steel pipe flanges with male and female face
WITHDRAWN published on 28.9.2000
Selected format:Hubbed socket welding steel pipe flanges with tongue and groove face
WITHDRAWN published on 28.9.2000
Selected format:Hubbed socket welding steel pipe flanges with ring-joint face
WITHDRAWN published on 28.9.2000
Selected format:Loose hubbed steel pipe flanges with welding neck collor
WITHDRAWN published on 14.1.2011
Selected format:Loose hubbed steel pipe flanges with welding neck collar with raised face
WITHDRAWN published on 28.9.2000
Selected format:Loose hubbed steel pipe flanges with welding neck collar with ring-joint face
WITHDRAWN published on 28.9.2000
Selected format:Slip-on-welding plate steel pipe flanges with flate face or raised face
WITHDRAWN published on 28.9.2000
Selected format:Slip-on-welding plate steel pipe flanges
WITHDRAWN published on 14.1.2011
Selected format:Technical requirements for plain carbon and low alloy structural steel sheets
WITHDRAWN published on 9.7.1982
Selected format:Latest update: 2024-09-08 (Number of items: 2 346 217)
© Copyright 2024 NORMSERVIS s.r.o.