According to the data analysis of the period with the highest pollution in the whole year from 2017 to 2020, the severely polluted weather of PM2.5 in the whole country is in the autumn and winter seasons of these years. Especially in the famous industrial production cities in China. For example: Beijing, Tianjin, Jiangsu, Zhejiang, Guangdong and other large urban areas are the peak pollution periods of this season.

  It is clearly required that local governments must resolutely prevent perfunctory and temporary measures such as "stop first" and "all shut down" in order to complete the target task. laser filter smoke, laser filter system

     When encountering heavily polluted weather, local governments are required to initiate early warning in accordance with the emergency plan for heavily polluted weather that has been formulated; continue to implement performance grading and differentiated emission reduction in key industries, rather than shutting down production on a large scale, and minimize disruption to normal production of enterprises. Interference, laser filter systemlaser cutting filterdisc filter h13.

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