2019-11-08 14:29:43
sawchina
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BS EN 12517-1-2006 焊接的無損檢驗.焊接接頭的放射性檢驗.驗收等級 (Non-destructive examination of welds - Part 1 Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography — Acceptance levels) 下載地址：
鏈接：https://pan.baidu.com/s/1AhgRC0l8mDGpp6uv2WXwDA |
