vehicle emission standards are becoming increasingly strict, standard update faster and faster, July 1, 2017 began the implementation of the National V emission standards of the country, to July 1, 2019, Shandong, Henan, Jiangsu and other provinces It has already begun the implementation of the Six Nations, as of now most of the country have also been started up. The introduction of the New Deal, our daily lives have had a series of effects that are like the domino was pushed, a ring set hellip; hellip;