Excerpt from Compressed Air Magazine, Vol. 26: June, 1921
This self-incapacitating of a liquid-oxygen explosive has its drawbacks, for it makes it imperative that the work of charging a hole be done rapidly. Even then, the miner must be sufficiently expert to place all his charges, connect the fuses or detonators, and reach a place of security within an interval of ten to fifteen minutes. How quickly the miner has to work can be grasped by the following de tails.
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HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000. Codice articolo LX-9780332942223
Quantità: 15 disponibili