3321141 - Rock drilling machinery and equipment
All examples - 3321141 - Rock drilling machinery and equipment
- coal drilling augers
- hand held air drills for mining
- hand held pneumatic rock drills
- hand held rotary type pneumatic rock drills
- rock cutters (except for underground mining)
- rock drilling machinery and equipment
- rotary blasthole drill for open-pit mining
- self-propelled diamond rock drills (except underground mining or oil and gas field)
- self-propelled rock cutters (except for underground mining)
- self-propelled rotary blasthole drill for open-pit mining
