✦ LIBER ✦
Development of an impact rock breaker shaft sinking system : Phillips, S H E US Bureau of Mines report OFR 20–82, June 1981, 87P
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 104 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0148-9062
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