Novel coal-cutting bits and their wear resistances
By: by Lung Cheng ... [et al.].
Contributors: Cheng, Lung.
Series: Bureau of Mines report of investigations ;; 8791; Report of investigations (United States. Bureau of Mines) ;; 8791.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1983
Place of publication: [Avondale, Md.]
Language: eng
Number of pages: 15
Subjects: Coal-cutting bits.; Mechanical wear.; Coal mines and mining -- Safety measures.
Notes: Includes bibliographical references.