This type of the 1990s world most prevailing roofing panel, selfflock fasteners with buckle and edgefixed are all hidden. There is no screw outside of the roofing. Installing swift and convenient, having good section characteristic, its life is raised by more than 2 times than ordinary. There is no seepage definitely, suitable for all roofing, stock the over the past seval years main regeneration product. Cooperatad with roll forming machine of curve, it can produce roofing system with skeleton. Main technical parameters: Main motor power (Kw) 7.5 Kw Hydraulic station motor power (Kw) 2.2 Kw Roll stand 16 stands Uncoil 1000mm Thickness 0.4-0.8mm Material of cutter Cr12 We can manufacture according to you!