Qingdao Roadup Parts Vehicle Parts Co.,Ltd, locate Haibin Industrial Park, Qingdao city, north of China, Our company Invested $2million to build the most advanced producing lines for manufacturing the high quality tubeless valves,。We focus on disigning,developing and manufacturing the top quality tubeless valves for Bicycles, Passanger cars etc. Our products mainly export to Europ, USA，Janpan and South America.