Qingdao Doublestar Tires Co.,Ltd. is one of the biggest tire manufacturer in China.It mainly prduces "Doublestar"&"AOSEN"brand,more than 300 kinds of tires,including Heavy-duty Truck Tires,Bias Heavy-duty Tires,Off-The-Road Tires,Light Truck &Agricultural tires,Motorcycle tires,Bicycle tires,Inner Tubes,and etc..  Its products have passed CCC,ISO/TS16949,ISO9002,QS9000,DOT,ECE,GCC.All products have been well exported to more than 130 countries and regions in Southeast Asia,Central & South America,Middle East,Africa,and etc...