1.The cross transmission system composed of guide rods and linear bearings contributes to a simple and reliable structure with low movement resistance and long service life;

2.The flexible adjustment possibilities enable a more convenient installation and adjustment;

3.The two-level locking with an additional pressurizing locking device improves safety performance;

4.The peripheral rubber sealing design leads to a better tightness;

5.The unique anti-freezing device enables a better environmental adaptability and secures the proper application of the door operation in extremely cold conditions;

6. The door leaf manufactured using aluminium honeycomb sandwich structure provides light weight, high strength, good sound and heat insulation.