标 准 编 号：BS EN 12517-1-2006 简体中文标题：焊缝的无损检验.用放射线照相术评定钢、镍、钛及其合金的焊接接缝.验收等级 繁体中文标题：焊缝的无损检验.用放射线照相术评定钢、镍、钛及其合金的焊接接缝.验收等级 English Name：Non-destructive testing of welds - Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography - Acceptance levels ...