Чтение машиностроительных чертежей деталей Технические требования и обозначения.
ОНЛАЙН-РЕСУРСИ ДЛЯ СТУДЕНТІВ ПРОФТЕХІВ
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7 months ago 00:10:04 1
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1 year ago 00:23:37 48
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2 years ago 00:05:25 60
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3 years ago 00:02:28 2
3 years ago 00:07:40 1
