... in just one-time, and the Corrugated Roll Forming Machine and the Sandwich Panel Laminator can work independently. ... line of the Corrugated Roll Forming Machine consists of the uncoiler, cold-bending roll forming machine, cutting device, whereas the ... , heating and pressurizing system, sandwich, flat curling, edge rolling, edge-turnover, grooving, edge-trimming device, pneumatic clamping device ...