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3 Cards in this Set
- Front
- Back
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According to B31.3 a weld procedure qualification records from a previous employer can |
B be accepted if the owner approves |
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When welding together piping components of different thickness, the thicker part should be trimmed with a maximum taper og |
C 30° |
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For soil to air inspections on uncoated lines, it is recommended to excavate the soil |
B 6-12" |
