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Radiographic Inspection Technology and Quality Classification for Metal Fusion Welded Butt Joints DL/T821-2017

2018-03-02View Original

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Requested: Electronic version of DL/T821-2017 – Radiographic inspection techniques and quality grading for metal fusion welding butt joints
Reply #22018-03-12
Electricity standards are hard to come by, especially since they’re quite new. . . It is recommended to refer to GB3323 and NB47013 on non-destructive testing of pressure equipment
Reply #32018-03-12
Each is different; they cannot be mixed up.

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Translated at 2026-07-21 03:02:35

Original: https://bbs.hcbbs.com/thread-1933547-1-1.html

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