1. Overall effect of the fire-resistant door hinge
(1) The door lock switch of the door leaf is flexible and does not form "self opening".(fire-resistant hinge)
(2) The gaps around the door leaf are consistent with the regulations.
(3) The connection gap is tight and firm.
(4) The decorative surface shall be free from damage. Click here to download construction technical data for free
2. The seam standard of the fire-resistant door hinge
(1) The door leaf locking position and mullion joint are 3-4mm.
(2) The joint between the door leaf joint side and the mullion is 2-3mm.
(3) The seam between transom and door leaf is 2-3mm.
(4) The joint between the door leaf and the ground is 6-8mm.