People use Roofing Sheet Machine, Such as Tr4 Metal Roof Panel Roll Forming Machine, Trapezoidal Sheet Roll Forming Machine to produce metal sheet for industrial, commercial and residential roof cladding. Although there are numerous profiles of roofing sheet, the process of forming is the same. Coils (GI coils, PPGI coils, GL coils, PPGL coils, etc) go through decoiling, roll forming, cutting and then come out the desired roof products .
