Recently, the Zhejiang Ecological Environment Department issued the key points for the province's ecological environment in 2019. Among them, the steel industry called for greater efforts to clean up emissions and treat unorganized emissions, and implemented ultra-low emissions transformation of Ningbo Iron and Steel, Zhangzhou Yuanli and other steel companies.

　　We will accelerate the construction of clean energy demonstration provinces, phase out 422 coal-fired boilers of 35 steamed tons/hour or less, carry out ultra-low-emission renovation of low-pollution boilers of 35 steamed tons/hour or more, and carry out inspection and rectification of industrial furnaces and kilns.We will formulate a plan of action for pollution control of diesel trucks, and coordinate the treatment of "oil, roads and vehicles".