Changtong Technology Co., Ltd., a Sino-America joint venture, founded in 2004, specializes in the production of copier, laser printer spare parts and consumables. Headquartered in guangzhou District, setting up the branches in tianhe, Shanghai, respectively. It has 300 workers and staffs Currently, and the building area is over 10, 000 m2. With arduous efforts and remarkable innovation for eight years, changtong has grown into a world-famous manufacturer and enjoys high reputation at home and abroad.