The door leaf side edges adopt a single-seam close-fitting interlocking structure, providing anti-loosening performance. The entire door leaf surface has no exposed screws, rivets, welding spots, welding seams, or welding positioning holes, effectively improving surface quality and ensuring reliable performance in various environments.
The internal core is filled with perlite fire-rated board.
The surface finish is available in two options: RAL color chart electrostatic powder coating or wood grain finish. The wood grain finish can be achieved through heat transfer printing or by applying PVC film on the steel sheet surface. Wood grain colors can also be customized based on color samples provided by customers.
The door frame is equipped with an R-shaped airtight groove, with a removable airtight fire seal embedded inside. It provides shock absorption, sound insulation, and smoke control, effectively reducing noise when opening and closing the door.