Name
sandblasting surface treatment pdc coring drill bit
Application
coal mining,geologic prospecting etc.
Meterial
Diamond & sintered carbide
Dimension
AQ, BQ, NQ, HQ, PQ
Color
Golden, silver, blue grey, black, etc.
Delivery Term
By sea or air
Type
AQ.BQ.NQ.HQ.BQ PCD Core Bits