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: 40-50mm

5) The infrared secure protection device is available

6) Speed: 140mm/s

7) Distance of remote controlled: 30m

8) Lock in emergency for power off

9) Finger protector