Install continuous geared hinge for 400kg door

Large fire door, a door frame weighs 200kg, the traditional hinge can't bear the weight, the door frame is easy to fall off, and the traditional hinge will be damaged. We used our products, and the door frame with a height of 4.2 meters is combined with the continuous gear hinge with the same length, which is corrosion-resistant, waterproof and fireproof, suitable for any environment, with long service life, smooth opening and closing, and extremely high tensile performance.