Non-destructive testing of steel tubes - Part 9: Automated ultrasonic testing for the detection of laminar imperfections in strip/plate used for the manufacture of welded steel tubes (ISO 10893-9:2011 + Amd 1:2020) (includes Amendment A1:2020)
钢管无损检测.第9部分:焊接钢管制造用带材/板材层状缺陷检测的自动超声波检测(ISO 10893-9-2011+Amd 1-2020)(包括修改件A1-2020)