Diamond drilling bits [slaid]/

Lignende værker

• The bit
  af: University of Texas. Petroleum Extension Service
  Udgivet: (1976)
• The bit /
  af: Leecraft, Jodie, et al.
  Udgivet: (1981)
• Roller-cone bits [slaid]
  Udgivet: (1977)
• An investigation into the percussive drill bit penetration of rock /
  af: 322463 Mustapha Kamal Shahrom
• An investigation into the percussive drill bit penetration of rock / [mikrofilem]
  af: 322463 Mustapha Kamal Shahrom