Control principle of electric butterfly valve 400 With the development of science and technology, we have always believed that we will have a better future, especially the recent rapid development of the electric butterfly valve industry, which brings us a comfortable life at the same time, let us see a better future. At present, among a series of shock absorption equipment produced by Zhenxin Shock Absorber Factory, shock absorber, compensator and other equipment are all raw materials. With the development of the industry, the shock absorption industry will develop rapidly.