GB/T 18256-2015

Non-destructive testing of steel tubes—Automated ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for verification of hydraulic leak-tightness

钢管无损检测 用于确认无缝和焊接钢管（埋弧焊除外）水压密实性的自动超声检测方法