Инструкция по термической обработке изделий и по наварке твердых сплавов на буровые инструменты - утв. Ком. по делам геологии при СНК СССР 27.06.42

Инструкция по термической обработке изделий и по наварке твердых сплавов на буровые инструменты - утв. Ком. по делам геологии при СНК СССР 27.06.42

111 Pages · 1944 · 922 KB · Russian
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“ Those who bring sunshine to the lives of others cannot keep it from themselves. ” ― J. M. Barrie
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