How To Use Rock bit In A Sentence

• Assemble inserts and cones respectively, and prepare for calculating 3D engaging distance of tri-cone rock bit.
  0 0
• Design calculation process as well as machining technology of rock bit are detailed introduced.
  0 0
• For many years it has been known that rock failure is complex, and results from the many stresses arising from the combined movements and actions of the tooth of a rock bit.
  0 0