黄瓜视频

• For Mining

  

• Oil & Gas Drilling

  

• PDC Flat-head Drill Bit

  

• PDC Concave Drill Bit

  

• PDC Arc Drill Bit-1

  

• PDC Arc Bit-2

  

• PDC Anchor Drill Bit

  

• Road Milling

  

• Constrction Rotary Drilling

  

• U170 Series-1.70''/φ43mm Step Shank

  

• U135 Series-1.50''/φ38mm Shank

  

• U120 Series-1.18''/φ30mm Shank

  

• U90 Series-1.38''/φ35mm Shank

  

• U80 Series-1.18''/φ30mm Shank

  

• U47 Series-1.50''/φ38mm Step Shank

  

• Marble Quarry