AWS B2.1-1-002:1990(R2006)

Действует

STANDARD WELDING PROCEDURE SPECIFICATION (SWPS) FOR GAS TUNGSTEN ARC WELDING OF CARBON STEEL, (M-1/P-1, GROUP 1 OR 2), 3/16 THROUGH 7/8 INCH, IN THE AS-WELDED CONDITION, WITH OR WITHOUT BACKING — 15 стр.