Institution, 8. B. S. Approval testing of welders when welding procedure approval is not required.
Chicago-čujuhus (17. p.)Institution, 8096 British Standards. Approval Testing of Welders When Welding Procedure Approval Is Not Required.
MLA-čujuhus (9. p.)Institution, 8096 British Standards. Approval Testing of Welders When Welding Procedure Approval Is Not Required.
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