Belongs to Class A gate.
Class A door refers to the door with the highest anti-theft security level. The material thickness of Class A door must reach 2mm, the number of locking points must reach 12, and the destruction time of Class A anti-theft door must be greater than Or equal to half an hour, and finally the fire resistance and heat insulation of Class A doors should be greater than or equal to 1.5 hours. Moreover, Class A doors have the highest configurations, such as lock cylinders, lock bodies, handles, etc., which are relatively high-end. If conditions permit, you can pursue paint, so the higher-end the paint, the better the surface treatment. The better, the color does not fade. The professional 9cm Feng Shui Wealth Gate has higher requirements for the door, because it is related to family harmony and safety issues. The door thickness and safety requirements are higher, so it is a Class A door.