First, the scarcity of non-ferrous metals has led to an increase in the market.

Second, non-ferrous metals are often associated with industries such as steel and special equipment manufacturing, and are inseparable from non-ferrous metal mining and scarce resources industries. Therefore, the positive momentum of multiple plates has also stimulated the upward offensive of non-ferrous metals, just like the "butterfly effect", which moves at a beat and moves the whole body.