Introduction: The door leaf is a horizontally open door with the mullion as the axis. Internal opening is used inside the building, and external opening is often used outside the building and emergency doors.

Advantages: high safety, low noise when opening and closing, long service life and good sealing.

Disadvantages: the swing door has large vibration, low space utilization, and less style than other types of doors.

Key points of purchase: carry out multiple tests on the swing door to see if it is convenient and sensitive. If there is a prick or it is not smooth, that is, the hardware quality is poor.

Maintenance skills: protect the surface of the door to avoid scratching the surface by hard objects. It is forbidden to use hard objects to clean the dirt on the surface of the door leaf.