*PDF* Read Frictional Ignition With Coal Mining Bits Download Full

Language: en
Pages: 36

Authors: Welby G. Courtney

Categories: Coal-cutting bits

Type: BOOK - Published: 1990 - Publisher:

Language: en
Pages: 26

Authors: Irving Hartmann

Categories: Mine explosions

Type: BOOK - Published: 1955 - Publisher:

Language: en
Pages: 20

Authors: Lung Cheng

Categories: Coal-cutting bits

Type: BOOK - Published: 1987 - Publisher:

Language: en
Pages: 20

Authors: Edward M. Kawenski

Categories: Coal-mining machinery

Type: BOOK - Published: 1979 - Publisher:

Language: en
Pages: 24

Authors: L. Garner McDonald

Categories: Coal-cutting bits

Type: BOOK - Published: 1992 - Publisher: