China 'GB/T 40080-2021
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 40080-2021
Nondestructive testing of steel tubes—Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness 钢管无损检测 用于确认无缝和焊接钢管(埋弧焊除外)水压密实性的自动电磁检测方法
Issued Date:2021/4/30
Implemented Date:2021/11/1
Issued by:
The Standardization Administration of the People's Republic of China
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