1. Three functions: remote controlled, electric, manual built-in, outside, back contorted, spring balance system;

2. Door plate adopts advanced imported steel, the surface of which is impressed with classic wooden stripe embossment;

3. The inside is foam, which can improve the effect of temperature retention and sound insulation;

4. Thickness of door plate: 40 - 50 mm;

5. The infrared secure protection device is available;

6. Speed: 140 mm/s;

7. Distance of remote controlled: 30 m;

8. Lock in emergency for power off;

9. Finger protector.