High Speed Door
Keep low temperature and hygiene in heavy traffic area
Key factors: fast opening and closing, reducing heat loss in heavy traffic area, 30mm thick filled with thermal insulation wool, save energy cost by USD8000 per year per door, fit for ante room or between ante room and freezer room, good air-tightness, avoid air and dust entering the room, room separation, air-lock, can be interlocking in buffer room
