1. Tracks:
made of aluminium. Leaf-guidance, sustain-track, safety device
are sealed in it.
2. Steel frame. The galvanized steel frame, which can hold
leaves.
3. Driving system. It is droved by chain. The door machinehas
the function of thermal protection. And also it can be adjusted
to be manual-driven.
4. Door plank. It uses double-deck GRP shutter as the main
material, which is 50mm in thickness and 490mm in height. The
upper and lower closed profile, including side wrapping of guide
wheel is made of aluminium.
5. Sealing system. Shutters: rubber pipe. Lintel: rubber
lip-packing. At the bottom: hollow shape. Sideway: brush.
6. Safety system. The air-bag system and mechanism system act as
a double protection.
7. Control system. Wiring is operated in panel box with voltage
of 24V. |
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