..Doublestar Group Co.,Ltd. It covers about 1,200,000 m2 with 30,000 m2 of building area and owns RMB 1,53 billion through the work of more than 7,000 employees. At present, the annual output has reached 1.5 million sets of all-steel radial tires, two million sets of heavy-duty bias tires, two million sets of light-duty agricultural tires, and four million sets of inner tubes, as comprise the products form of variable types system. .........................