POWTRAN Technology. The earliest and largest AC Drives (frequency converter) manufacturer in China since 1984. A Hi-Tech enterprise, establishing the networks of research&development, production, logistics and service extending to all over the world from Dalian and Shenzhen. Integrating the advanced technology from Europe, America, Japan and Taiwan, based on the research capacity of Tsinghua University, Dalian Maritime University and with advanced manufacture and test equipment, POWTRAN supply customers automatic and driving products with multi-functions. Enjoying good reputation worldwide.