Establishment in 2009 Tonword Technology Co., Ltd. is a professional manufacturer of switching power supply. We have passed the international certification of ISO 9001 and ISO 14001 quality management systems, and have been following the spirit of ISO in production and management. And at present the ERP management system has been adopted to ensure the high quality of our products and achieve cost reduction at the same time, so as to provide our customers with better services and more ...