标题: BS EN 10246-7-1996 钢管的无损检验 第7部分-用于无缝和焊接铁 [打印本页] 作者: liuxilin1215 时间: 2014-5-20 18:51:53 标题: BS EN 10246-7-1996 钢管的无损检验 第7部分：用于无缝和焊接铁
BS EN 10246-7-1996 Non-destructive testing of steel tubes — Part 7: Automatic full peripheral ultrasonic testing of seamless and welded (except submerged arc welded) steel tubes for the detection of longitudinal imperfections