Mainly used for the electrolysis of non-ferrous metals such as aluminum, magnesium, zinc, copper, manganese, manganese dioxide, etc; Smelting of metals such as gold and silver; Smelting of rare earths such as neodymium, iron, and boron, as well as smelting of hard alloys and diamonds; Salt water, potassium salt electrolysis caustic soda, potassium alkali, sodium production; Electrolysis of potassium chloride to produce potassium chlorate and potassium perchlorate; Carbon plants, silicon carbide, refractory material electric heating, and other high-power DC power sources.