1.New technology 2.New formula 3.New structure 4.heat-resisting, aging resistance 5.Highly Tear Resistant, high ... ,2.50-18 ,3.00-18 ,3.25-18 ,2.50-14 ,2.75-18 ,3.00-17 , 3.25-17 ,3.50-10 ,2 ... .25-14, 3.00-10 ,4.00-10 , ... 12 ,4.00-8 ,3.00-10 , 3.50-8 ,3.25-16 , 2.75-21 ,3.50-17 ,3.50-16 ,90/90-18 ... x 1.75 , 9 x 3.50-4 , 2.50-10 ,3.50-6 ,3.50-4 ,3.00-4 , and so on ...