1,Provide natural and butyl inner tube with different quality. 2,Various size inner tube for you to choose. 1, We main produce natural and butyl inner tube and flaps with tensile strength 7Mpa,8Mpa,10.7Mpa,13Mpa.14.7Mpa and so on.2, Provide high quality and best price inner tube.Various size inner tube for you to choose,for bicycle.The datailed information about inner tube is as below.3, I can ...