AWS- B2.1-1-209:1996(R2007) Standard Welding Procedure Specification (SWPS) for Gas Tungsten Arc Welding Followed by Shielded Metal Arc Welding of Carbon Steel, (M-1/P-1/S-1, Group 1 OR 2), 1/8 through 1-1/2 Inch Thick, ER70S-2 and E7018
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