Drilling Bucket with Rock Drilling Teeth: 1.Option half-automatic or manul mechanic bottom open system,Built-in ventilation pipe; 2.Cast pilot with .....
Drilling Bucket with Rock Drilling Teeth: 1.Option half-automatic or manul mechanic bottom open system,Built-in ventilation pipe; 2.Cast pilot with .....
Core Barrel with Roller Bits A core barrel with roller bits is a specialized drilling tool used in geological exploration and engineering projects. It...