Concrete cutting technology are there?

1 manual cutting. Manual cutting chisel; the more laborious, not very convenient.
2 circular saw cutting wheel. Cut with a diamond saw blade disc; this is mainly cutting walls and the road has two kinds of saw blades, concrete cutting wheels very good. Suitable for houses or roads transformation.
3 wire saw cutting. Diamond wire saw cutting; this advantage that grow as long as there is enough rope saw, how objects can be cut, such as mining cut, diamond wire saw strong Germany is also very good