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