1/ Structure of the wing: The door is made of 3 layers, the outer 2 layers are galvanized steel sheet against rust and sprayed with electrostatic paint. The middle core is made from Honeycomb paper material, which has the effect of sound, heat insulation, creating stiffness for the wings.

2/ Surface paint: Paint the door surface through phosphate treatment, degreasing rust and impurities clinging to the steel plate surface. This way will help protect the door always in the best condition, prevent scratches, increase aesthetics.

3/ Frame structure: The steel door frame is made of electroplated steel material, with a thickness of 1.2-1.5 mm, so it has good bearing capacity, firmly adheres to the wall, does not occur hinges and meets the requirements. safe enough to use.

4/ Accessories: Hydraulic retractor arm, lock, Hinge, Doorsill, emergency bar...