AWS B2.1-1-012:2002(R2013)
Действует
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR SHIELDED METAL ARC WELDING OF CARBON STEEL, (M-1, P-1, OR S-1 TO M-1, P-1, OR S-1), 10 THROUGH 18 GAUGE, IN THE AS-WELDED CONDITION, WITH OR WITHOUT BACKING
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