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Стандарты материалов для шайб

2016-01-29View Original

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Только что получил таблицу классов материалов для проекта. В описании материала для плоских прокладок указано GRADE9, а стандарт размеров — ASME B18.22.1, SAE “N”. Какой же это стандарт материала для GRADE9? Выяснилось, что у A194 есть только Gr.9C(A), но нет Gr.9. Прошу помощи, большое спасибо!

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