AWS B2.1-1-205:2019
Действует
STANDARD WELDING PROCEDURE SPECIFICATION FOR SMAW OF CARBON STEEL, (M-1/P-1/S-1, GROUP 1 OR 2), 1/8 THROUGH 1-1/2 INCH THICK, E6010 (VERTICAL UPHILL) FOLLOWED BY E7018 (VERTICAL UPHILL), AS-WELDED OR PWHT CONDITION
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