◇ The multi-locking and pressing device contributes to a door system of high safety, and the max. static strength of door system can be up to ±8000Pa;

◇ The excellent air-tighness guarantees that the passengers are free from the impact of the pressure wave;

◇ The door leaf manufactured filled with high performance composite material gives good sound insulation (Rw=36dB) ;

◇ The pocket structure contributes to a simple structure, light weight and higher reliability.

◇ Weak moving cylinder driving, simple structure and high reliability.