• 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling
  • 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling
  • 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling
  • 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling
  • 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling
  • 4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling

4 1/2 inch API standard hard rock tungsten carbide drill bits for deep oil drilling

USD $630 - $720 / Piece
1 Piece(Min.Order)
  • 300 Piece / Pieces per Month
  • Tianjin/Beijing
  • T/T Credit Card