Back-up cutters prevail in hard and abrasive rock
Anderle, Seth Dunbar, Brad Chen, Shilin
Back-up cutters prevail in hard and abrasive rock - oct. 2017 - 3 p. ; 43-46
10
Back-up cutters prevail in hard and abrasive rock - oct. 2017 - 3 p. ; 43-46
10



