AWS B2.1-1/8-227:2002 AMD1(R2013)
Действует
STANDARD WELDING PROCEDURE SPECIFICATION FOR GTAW OF CARBON STEEL, (M-1/P-1/S-1, GROUPS 1 OR 2) TO AUSTENITIC STAINLESS STEEL (M-8/P-8/S-8, GROUP 1), 1/16 THROUGH 1-1/2 INCH THICK, ER309(L), AS-WELDED CONDITION
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