Fast Penetration Borehole Drilling Tools , Button Type Coal Mining Bits

Coal Mine And High Grade Steel Fast Penetration Thread Button Bit Description: 1. Our products are widely used in drilling open-pit and underground blastholes, water and thermal boreholes, tunneling, hydraulic engineering, geological exploration, oil and gas exploitation, bridge and architectural construction etc. 2. Our theme color is orange, but we can also design your color upon your request. 3. Per your pantone code, we can design the color. 4. Customer labels are clearly