GB/T 12606-2016

Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections

无缝和焊接（埋弧焊除外）铁磁性钢管纵向和/或横向缺欠的全圆周自动漏磁检测