As the main source of atmospheric pollution, car exhaust gas emits more than 60% of the total atmospheric pollution. Under the pressure of environmental management, exhaust gas treatment equipment will usher in rapid development opportunities. According to the calculation of the Ministry of Environmental Protection, motor vehicle exhaust is the main cause of multiple smog formation. 1) Traffic jams increase on the road, fuel power drops, and pollution emissions from motor vehicles are clearly added. Especially in urban areas such as Beijing, the density of motor vehicles is high, the activity intensity is high, and the amount of low-level emissions of pollutants is large, which contributes more to the local PM2.5 concentration. 2) Exhaust or over-expenditure of 90 million motor vehicles in the country. As of the end of 2014, the number of cars in China was 150 million, with 130 million gasoline vehicles in operation. According to the catalyst's life span of 80,000 to 100,000 kilometers or 5 years, the 66 million cars produced before 2010 have been overspending, and because China lacks overdue catalyst replacement inspection, more than 60 million gasoline vehicles produced from 2011 to 2014 will be produced. About 20 million vehicles have been overspend, totaling over 90 million vehicles. After the catalyst fails, pollutant emissions will increase by 3 times. Become the main source of haze. In this regard, industry experts expressed optimism for vehicle exhaust gas treatment equipment. Taking Beijing as an example, according to the amount of 90 million cars that were overspending the car at the time, the imported SCR system had a single set price of 30,000 to 40,000 yuan, accounting for only 3.15 trillion yuan for the capacity of the catalyst replacement shopping mall. In addition, considering the reality of the haze and pressure on the city, Pressure, the standard supply of China VW and diesel is expected to be ahead of schedule, together with the relevant shopping malls for tail gas VOCs management, exhaust gas inspection, and environmental monitoring, and the planning of vehicle exhaust gas treatment equipment is limitless. Good Filter Mesh,Polyamide Polyester Screen Mesh,Custom Filter,Carbon Filter shaoxing gesheng wire mesh co., ltd , https://www.gscreenmesh.com