mining equipment users in the rectifier control, outdoor cabinet protective structure, reasonable circuit design, complete protection function, the signal displays eye-catching, easy maintenance, performance circuit design is reasonable, complete protection function, the signal displays eye-catching, easy maintenance, safe and reliable performance and so on. performance specifications and varieties of products in the domestic leading position, and has been used in baosteel, wuhan iron and steel, shougang, anshan iron and steel, maanshan steel and other large steel companies, as well as mining, light industry, power plants, refractory materials, food processing and other industries, it plays a huge role.