GB/T 40080-2021
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
Nondestructive testing of steel tubes—Automated electromagnetic testing of seamless and welded (except submerged arc-welded) steel tubes for the verification of hydraulic leaktightness
GBT40080-2021, GB40080-2021