Since its establishment, the company has always adhered to the business policy of quality priority, technological excellence, and service supremacy, and is committed to the development and promotion of technology in the frequency conversion industry. In terms of frequency conversion furnace technology, 3-10 ton aluminum shell furnaces, 3-20 ton stainless steel aluminum shell composite structure melting furnaces, and cage structure magnetic yoke furnaces with a capacity of up to 60 tons have been developed; In terms of variable frequency power supply technology, one to two dual power supply intermediate frequency power supplies have been developed, including high-voltage variable frequency power supplies, dual machine parallel power supplies, 12 pulse high-power power supplies, and 24 pulse low harmonic power supplies, with a maximum power of up to 15000 kilowatts. These high-power power sources are currently mainly used for melting and heating large metal (steel, copper, aluminum, etc.) workpieces and profiles (pipes, plates, strips, bars, etc.). In addition, the IGBT ultrasonic power supply (frequency up to 50KHZ) and MOSFET high-frequency power supply (frequency up to 400KHZ) developed and produced by our company are ideal choices for heat treatment of small metal components and can currently replace many electronic tube power supplies.