Fill in the blank with the correct option:
_________ is most suitable for quarrying small, thin and regular blocks of stones from ‘rocks, such as granite and gneiss.
1
Wedging
2
Boring
3
Heating
4
Channeling machines
Fill in the blank with the correct option:
_________ is most suitable for quarrying small, thin and regular blocks of stones from ‘rocks, such as granite and gneiss.