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Novel coal-cutting bits and their wear resistances
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Published Year
1980-1989 (1)
Subject
Coal mines and mining--Safety measures (1)
Coal-cutting bits (1) *
Mechanical wear (1)
Author
Cheng, Lung. (1)
Furno, A. L. (1)
Liebman, I. (1) *
Watson, Richard W. (1)
