Located in Shenzhen City, China Mainland, Shenzhen Guandexin Technology Co., Ltd. specializes in the development, manufacture, marketing and after-sales service of power adaptors, AC/DC adaptors, power supplies, and USB chargers. Shenzhen Guandexin Technology CO., Ltd. has an excellent design team and a highly efficient management team. We have strict internal management systems and highly talented technicians who have rich working experience in power adapter and power supply fields. In addition, we have set up several departments, including R&D, Production, Sales and Service. We always...