Dongguan Yishang Electronic Technology Co., Ltd., established in 2010, is a professional manufacturer of power supply, chassis and other electronic products. From the "production - Sales - after-sales service" is a complete set of systems.Nu Ruima is the brand of its mining machine power supply, eight card platform and other peripheral products. After years of R & D and innovation, its technology has been very mature. Is committed to create the most comprehensive, economic, effective mining machinery peripheral products