... 2.Forming Speed:14m/min 3.Roll Stations:19 The description of Roll Forming Line are as follows:1 ... in English. Usage Of Roof Panel :The roof roll forming line can produce various of steel roof and ... are widely used as the roof and wall of factory, warehouse, garage, gymnasium, exhibition center, cinema, theatre, etc. ... can make and design will kinds of roll forming machine according to customer's request.