1.        In inlays the seal wooltop,between the greatest degree reduction shutter rubs,reduce the noise ,better plays the seal role

2.      The shutter connection in the back,the kneading board and the back board lincking in the same place,overlaps four steel plates,forms passes through the entire block shutter the stiffener,may in the random position fix-pin butter.

3.        The     gaplessdoorplate,heatpreservation,sound   insulation,airproof,windproof,waterproof ,dustproof.Mmatched with new jioned leaf,and by dint of the force of the wring reed or pull reed ,it can open upward directly,and hangs downward the ceiling flatly.,and takes full advantage of the inner and outer space of the building.

4.        The garage door  is installed the inner side of the hole,and it does not influence the width the hole,and vehicles can come and out coveniently,equipped with  good quality open-machine,it can be open by electric,hand or remote contral.