... consists of a roll forming machineand a sandwich panel laminating system. Through this line, corrugated sandwichpanels can ... uncoiler, feeding, squeezing, gelatinizing, heating, laminating,edge rolling, edge turn-over, groove-making, edge pruning, pneumaticdevice, automatic cutting and PLC. The ... advanced PLC and sets the length and cuts the panel automatically.5. The main body is welded with type ...