From the perspective of aluminum product application and promotion, demand substitution is also one of the main directions of aluminum application expansion in essence, whether it is automobile lightweight, or the continuous extension of aluminum household application range, etc. from the perspective of aluminum industry consumption hotspots in the first half of the year, there is a more obvious demand substitution phenomenon. In terms of specific subdivision areas, we can not only see the aluminum guardrail in the process of poverty alleviation of Jianmei aluminum industry, but also see the rapid delivery of lightweight commercial vehicles under the influence of the epidemic.