Sectional doors are die-cast from double-layered steel plates (inner and outer), with the door panels coated with a high-temperature polyester spray finish. The door panels are 40 mm, 50 mm, or 80 mm thick.
100 mm thick, sturdy, heat-insulated, thermally insulated, dustproof, and wind-resistant; the tracks are reinforced with hot-dip galvanized steel plates, making them robust and durable, with external torsion springs providing a service life of over 50,000 cycles. The lifting mechanism can be customized to meet the user’s on-site requirements.
