ГОСТ 14771-76 Дуговая сварка в защитном газе. Соединения сварные. Основны

ГОСТ 14771-76 Дуговая сварка в защитном газе. Соединения сварные. Основны

39 Pages · 2015 · 2.81 MB · Russian
by Ёшкин кот
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“ Kindness, like a boomerang, always returns. ” ― Unknown
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