It is equipped with rubber seal. Special purpose seal stripe are used to seal around the Mobile door to make sure that the door will joint tightly with the door frame for air Tightness when closed. It can joint the door frame when closedown and ensuring the air tightness of door. At Both sides and the center joint, there are the sealing strips installed, which conforms to The sanitary requirement for use in hospital , research institute, recording studio or any Other places need for dust proof , gas proof , water proof, etc. Door material: 1, surface: A, steel with decorated 304, stainless steel panel. With aluminum framed. Color: usually blue, white, grey-white. For other color, the lead time will be Longer. B, 304, stainless steel. Color£ºoriginal stainless steel color 2, infill: A, pvc foam B, 60mins fire rated bolivian magnesium boar. 3, handle: 304, stainless steel 4, glass£ºthickness=6mm clear glass or fire rated glass. 5, driven system: brushless motor, feet/hand sensor switch, microcomputer control System, aluminum guide, stainless steel system cover, etc. All with ce certificate . 6, seal: rubber.