Opening speed: 1.2-2.0 m/s adjustable, $ealabilty, energy saving and high efficiency: The combination of zipperpatented track technology and door curtain technologyachieves maximum energy saving.

Opening speed: 1.2-2.0 m/s adjustable. Sealability, energy saving and high efficiency: The combination of zipperpatented track technology and door curtain technology achieves maximum energy saving.Extremely high safely: the door curlain is sof and flexible, the bottom of the door has no load, to ensure that in anemergency sltuation, the operator is not protected in time, collislon on the door will not cause harm.PUSH PULl Dual Rotary $halt $ystem: Unmatched safety record and absolute sealing in PuSH PULl Dual Rotary ShafSystem. Traditional zipper door closure depends on the load at the bottom of the door curtain to achieve, but can drive thedual-axis system, and make it perfect occlusion with the chain teeth on the door curtain, and can achieve rapid closurewithout depending on the weight of the door itself. This patented technology avoids the use of hard parts.More than 1 milion durable performance: Fast doors reduce the use of wearable materials, strong and flexible curtainsare very durable, can withstand milons of open and close operations, in the actual use of some products have reached $million open and close.