Shenzhen Guanyu Digital Electronic Co., LTD was established in 2004,is a professional Tablet PC OEM/ODM manufacturer which has over 400 staff and owns the outstanding R&D team.We have nearly 300sqm sales office area and 5000 sqm factory building, developing, designing and making production and test with well-established facilities.this is our technical power! "High Quality, Competitive Price, On-Time Delivery, and Good After-Sale Service" are our principle. We have received good ...