IS09001 certificated, CCC, DOT, SNI, SONCAP, EEC certificated Hign natural rubber content, three different quality to different levels of markets25%, 35%, 51% Excellent gas-tightness and wear resistance Good elasticity and high tensile strength Greater strength and more durabilityMore load carrying capacityMore mileage and puncture resistence Better flex lifeExcellent heat dissipation in high ...