Shenzhen Guandexin Technology Co., Ltd is the professional manufactory are specialized 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.Our products have gained quality certification of CCC/CE/PSE/UL/ROHS/E-MARK by different nations. In addition, we have...