Aluminum profile products are characterized by flexible design, hardness, light structure and wear resistance, which are mainly used in the fields of architectural decoration, transportation, electronic appliances, mechanical and electrical equipment, etc., and can be specifically divided into architectural aluminum profile, industrial aluminum profile and aluminum profile deep processing products. The upstream of aluminum products is mainly aluminum ingot and aluminum plate production and sales enterprises, while the downstream is mainly real estate, building decoration, transportation and electronic equipment production enterprises. Aluminum curtain wall panel belongs to building aluminum profile, electronic round aluminum pole, electronic aluminum foil, etc. belong to industrial aluminum profile. Among them, the sales proportion of aluminum curtain wallboard has been more than 50% before 2013, which is greatly affected by the real estate and architectural decoration industry
