http://pastport.jp/user/freedynamics ja-JP Free dynamics is one of China's fastest-growing, globally focused, and professional robot vacuum cleaner manufacturers focusing on the Smart Cleaning industry with core products including robot vacuum cleaners. 2022-06-13T11:56:54+0900 http://pastport.jp/user/freedynamics/timeline/Freed%20ynamics freedynamics http://pastport.jp/user/freedynamics/timeline/Freed%20ynamics