Take a good look at someone. For example, if you go to Zhuhai Youte for after-sales or training, then what you have will fly and run all over the country. The five prevention equipments in Jiangxi power system are basically monopolized by Zhuhai Youte and Gong Chuang, but personally, Youte is easy to use and the attitude of after-sales staff is good, so the treatment of Youte should be good from the side. Otherwise, like some after-sales companies in Wuhan, they will come to us just complaining and cursing.