TY - BOOK A1 - prepared by the American Welding Society )AWS( D1 Committee on Structural Welding, AASHTO Highway Subcommittee on Bridges and Structures ; under the direction of the AWS Technical Activities Committee ]and[ AASHTO Executive Committee ; approved by the AWS Board of Directors ]and[ AASHTO Board of Directors/Policy Committee TI - Bridge welding code PB - کتابخانه مرکز پژوهش متالورژی رازی SN - 77567890 UR /book/77567890/Bridge-welding-code/ ER -