BS EN 12517-1-2006 焊接的无损检验.焊接接头的放射性检验.验收等级 (Non-destructive examination of welds -

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BS EN 12517-1-2006 焊接的无损检验.焊接接头的放射性检验.验收等级 (Non-destructive examination of welds - BS EN 12517-1-2006 焊接的无损检验.焊接接头的放射性检验.验收等级 (Non-destructive examination of welds - Part 1 Evaluation of welded joints in steel, nickel, titanium and their alloys by radiography — Acceptance levels).pd(565.64KB)