✦ LIBER ✦
Bit life and power requirements in rotary-percussive shothole drilling
✍ Scribed by I. F. Medvedev
- Publisher
- Springer
- Year
- 1967
- Tongue
- English
- Weight
- 271 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1573-8736
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