... , DOT, SONCAP, CCC, ISO As the long term inner tube supplier of our bus company and Qingdao port yard who ... reach 9.0MpaTensible Stretch: 600%,this indication of chinese tube is usually 500%.3.SpecificationSIZE DESCRIPTIONVALVE400R12TR13500R12TR13155/165/175/185R13TR13155/165 ... world and they are being exported to Canada, USA, Russia, Singapore, Japan, India, Brazil, Pakistan, Indonesia, Yemen, U.A.E, ...