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AWS American Welding Society
استانداردهاي انجمن جوشکاري آمريکا
AWS As a leader in welding education and technology development AWS promotes best practices and works to advance the science and application of welding and allied processes such as joining brazing soldering cutting and thermal spray.
سال : 2021 تعداد :1094 دسته :Special اشتراک :Subscribe پیمایش استانداردها >>


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