The main raw material of metal ceiling is aluminum-manganese alloy or aluminum-magnesium alloy. The metal ceiling base material of imported products generally contains high magnesium content, so the material is lighter and the flexibility and hardness of the material are better. However, some enterprises such as Tuscany Electric have begun to use Al-Mn-Mg alloy stamping ceiling modules to make the ceiling lighter, thinner, harder and tougher. In recent years, the use rate of suspended ceiling in family decoration is getting higher and higher.