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Design of Mine Layouts (report)

National Coal Board Mining Department

'Design of Mine Layout with reference to geological and geometrical factors'. Working Party Report 1972. 52 pages in blue covers.

Pwnc

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2018.164/17

Creu/Cynhyrchu

National Coal Board Mining Department

Derbyniad

Old stock, 9/8/2018

Mesuriadau

Meithder (mm): 297

Lled (mm): 210

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papur

cerdyn

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