1. According to cardboard types, they have single, double, triplex bridge conveyor.
2. With up-guide conveyor installed upon each single facer.
3. Level-type conveyor - 1, 2, 3 layers, could guide single face from each single facer to double, triplex, fourfold preheater.
4. Paper width and left-right movement are adjusted by electric device.
1. With sucking-brake device, and the tension of the corrugated board is controlled by pneumatic system. 2. With 2 sets of operational panels, and it could be operated at upper bridge or lower bridge. 3. With safety rails at two sides and staircases.