Y24 rock oil

air leg rock drill
1. tunneling
2. the second-broken in excavating fields
3. drilll blast-holes in engineer
concrete drill
hand hold
mining machine
1. It can be used to
tunnel in mines, roads or tunnels
.
2. It can be used to
drill blast-holes in engineering
.
3. It can be used in the
second-broken in excavating fields
.
4.well performed
5.
convenient
to use and mend
6.
effective
7.light
air leg rock drill
drill machines
rock bit
rock core

auger drill
concrete drill