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AWS B2.1-1-001:1990(R2006)

Действует
STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR SHIELDED METAL ARC WELDING OF CARBON STEEL, (M-1/P-1, GROUP 1 or 2), 3/16 THROUGH 3/4 INCH, IN THE AS-WELDED CONDITIONS WITH BACKING — 13 стр.