... /min Power of main machine:5.5kw ZWC-4 Full Automatic Concrete Roof Tile Making MachineThis machine combines the latest technology abroad ... and gas in one, in the production process, the material mixing, dosing, molding, stripping the introduction of full automation, because ... . less investment, quick, low cost, 20 ~ 25 Yuan / square, price 50 ~ 60 Yuan / square, when invested, when effective, is your ...