Diamond drilling bits [slaid]/

Diamond drilling bits [slaid]/

18

Bibliográfalaš dieđut
Váldodahkki: The University of Texas at Austin Petroleum Extension Service
Materiálatiipa:
Almmustuhtton: Austin, TX: Petroleum Extension Service, The University of Texas at Austin, 1977
Fáttát:
Diamond bits
Bits (Drilling and boring)

Geahča maid