A-John has more than 27 years experience in researching, designing and manufacturing mechanic system and have commercialized many kinds of automatic bearing modular for OEM/ODM customers all over the world. Since ten years ago, we technically cooperated with German partner to improve outdoor/indoor display system for advertising, exhibition or any commercial space. So far A-John enterprise has built a strong relationship and earned remarkable feedback in Europe market. Furthermore, during these years A-John's innovative system has be patented in many different countries.