Cast iron still occupies a place in automotive materials because of its many advantages in performance and cost. The progress of cast iron material makes its application in automobile appear new bright spots.

As early as 2016, when the domestic electrolytic aluminum production capacity reached its peak in the low-cost traditional coal-fired power production areas, Yunnan has already become a “Must-fight place”for new electrolytic aluminum production capacity by virtue of its hydropower advantages, each b