Consist of door body, top track, bottom track, sealing system, automatic system, safety system, driving system and transmission; divided into two types: hoisting and lower bearing; two running style: multi panels for one way push-pull and multi panels for two way push-pull.
1. Steel structure as the framework, general selection is Q235.
2. Customer can choose color plate, aluminum plate, corrosion resistant plate, aluminum composite plate or PU plate for outside decoration; or select day lighting form.
3. Bottom track use light rail or section steel;
4. Top track is steel frame composite structure;
5. Electrical component can choose reliable brands;