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GB - Chinese national standards
Page 173
GB/T 12234-2019 (18/10/2019)
Bolted bonnet steel gate valves for petroleum and natural gas industries
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 13 598.20 CZK more info
GB/T 12235-2025 (31/10/2025)
Steel globe valves and lift check valve for petroleum, petrochemical and allied industries
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 13 598.20 CZK more info
GB/T 12236-2025 (31/10/2025)
Steel swing check valve for petroleum, petrochemical and allied industries
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 12 026.20 CZK more info
GB/T 12237-2021 (09/03/2021)
Steel ball valves for petroleum, petrochemical and allied industries
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 10 716.10 CZK more info
GB/T 12238-2008 (23/12/2008)
Flanged and wafer resilient seal butterfly valves
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 2 751.10 CZK more info
GB/T 12239-2008 (23/12/2008)
Industrial valves - Diaphragm valves made of metallic materials
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 8 620.10 CZK more info
GB/T 1224-2016 (29/08/2016)
Vocabulary and character for geometrical optics
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 23 554.50 CZK more info
GB/T 12240-2008 (25/06/2008)
Iron plug valves
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 10 978.10 CZK more info
GB/T 12241-2021 (09/03/2021)
Safety valves—General requirements
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 6 419.20 CZK more info
GB/T 12242-2021 (09/03/2021)
Pressure relief devices—Performance test code
Available languages: English, Chinese
Available design: electronic design (pdf), Print design
from 32 200.80 CZK more info
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