Title: AWS B2.1-1-235 : 2020-AMD1, Standard Welding Procedure Specification  for 98% Argon Plus 2% Oxygen Shielded Gas Metal Arc Welding  of Carbon Steel , 1/8 Inch [3 Mm] Through 1-1/2 Inch [38 Mm] Thick, ER70S-3, in the As-Welded or PWHT Condition, Primarily Pipe Applications : AWS B2.1-1-235
Subjects: Technology