Spacious revolving door access space and elegant design makes the revolving door for a more lenient than the average of the effective area of ??the door and the internal air flow out the door less than ordinary, effective against external sand, dust, trash from entering. Special features, high-end design, and distinguished style of appearance so that the revolving door is widely used in high-grade building entrances. Such as: star hotels, shopping malls, commercial buildings, airports, high-level entertainment.