Metal Sheet Making Machine manufacturers Introduction The Roof Making Machines have strong power and long service life. The product adopts full automatic control, so it is simple to operate, time-saving and labor-saving. The fuselage is made of high-quality steel by precision welding. The roof board made by this machine has the characteristics of high wave crest and high strength, and its installation is safe, reliable and convenient. The waterproof and anti riot performance of the roof board is also strong. To sum up, the machine is highly automated, http://www.jr-rollformingmachi....ne.com/sheet-making-