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Novel coal-cutting bits and their wear resistances

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)

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