Product features

    (1) prevent the direct convection of the space and the outside air, and form a certain negative pressure in the space of the partition, so as to reduce the pollution caused by the partition space to the outside world.

    (2) ensure that the channel is not affected by the heat wave.

    Product form

    (1) semi-airtight door (single open, double open); (2) fireproof semi-airtight door (single open, double open); (3) airtight door (single open, double open)

    (4) fireproof airtight door (single open, double open); (5) hand wheel airtight door (single opening); (6) thermal insulation door.

    (1) semi-airtight door (single open, double open)

    A. The main components are calculated to ensure their safety;

    B. Under the premise of ensuring the overall rigidity of the door, the structure design is portable;

    C. The product has air tightness function;