... . high heat-resistant 5. ageing-resistan 1 Truck inner tube tire has good elongation rate,pulling strength from 8mpa to 14 ... are as flow: 1200-24, 1200-20, 1100-22, 1100-20, 1000-20, 900-20, 825-20, 750-20, 700-20, 650-20, 900-16, 825-16, 750-16 ...