GB/T 5777-2019 无缝和焊接(埋弧焊除外)钢管纵向和/或横向缺欠的全圆周自动超声检测英文标准名称:Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections
英文标准名称:Automated full peripheral ultrasonic testing of seamless and welded (except submerged arc-welded) steel tubes for the detection of longitudinal and/or transverse imperfections