● what issues need to be resolved?
 ● it can play a role in sealing needed?
 ● At the same time play the role of the impact of the closed doors of the normal use of it?
 ● it with doors and other components of the structure of the coordination of it?
 ● seal doors and windows of the structure is suitable for you?
 ● Single-fan, hinged, with the open or outside open
 ● double-leaf, hinged, inside or outside the opening to open
 ● Only one can be the activities of
 ● mouth or flat rate club doors
 ● turnstile Door
 ● hanging in the door of the single-axis or double-leaf doors fan
 ● wooden doors, metal doors or glass doors
 ● rolling shutter door
 ● Folding Door
 ● double-leaf windows, window box, hanging outside the window onto
 ● comply with national standards, safety standards?
   You may find that sometimes requires a door or window at the same time to play several roles, such as safety, fire, anti-wind and rain. Selection should therefore not only achieve the required attention to the selection of sealed end, the original doors and windows without affecting the performance, at the same time meet the national, local and industry-standard sealing products.