The internal structure of the curtain wall is dry hanging structure, which is divided into two types: no horizontal keel and horizontal keel. The basic structure of the curtain wall consists of connectors, keels, joints, fasteners and ceramic plates. 1. The ceramic plate is fixed on the keel through fasteners, which is convenient for installation, saving installation cost and time. 2. The installation of ceramic plates does not need glue, and will not pollute the ceramic plates and other components. 3. The ceramic plate is damaged during installation, can be replaced at will, and can be recycled.