Aluminium square tube is one of the ceiling materials produced in recent years. Aluminium extrusions square tube has open vision, ventilation, breathability, its lines are bright and neat, and its layers are clear. It reflects the simple and clear modern style. It is simple and convenient to install and disassemble. The main product that swept the decoration market in 2010. Aluminium profiles square tube is formed by continuous rolling or cold bending. The installation structure is a special keel snap structure. The installation method is similar to ordinary strip gussets, simple and convenient, and suitable for interior decoration. The aluminum square tubing profile has a characteristic ventilated aluminum extrusion profiles molding. The product hardness and straightness far exceed other products. The installation structure uses the upper main frame and is connected with the profile hammer…