1. The micro sliding and plug technology improves door tightness both from outside and internal passenger pressure;
2. The full-digital controlled electronic door control unit carries out the door control, monitoring, diagnostic, self-learning and network communication functions;
3. The brushless DC motor driving system boasts low electromagnetic interference, and has long service life with high reliability;
4. The passive locking device features simple structure, long lifetime and high maintainability;
5. The custom made driving screw nut pair system is maintenance free with good environmental adaptability, long service life and high reliability;
6. Alu. alloy loading and guiding system and swing micro sliding plug operator are integrated to be a simple, reliable and light operator featuring small movement resistance, small volume, stable movement and long service life;
7. The door leaf manufactured using aluminium honeycomb sandwich structure provides light weight, high strength, good sound and heat insulation.