1,including:bicycle inner tubes, 2,ele-bicycle inner tubes 3,motorcycle inner tubes 4)good quality cheap price The company produces the butyl rubber bicycle, the electric car, the cycle tube thermostablly, the production tire tube, bears the aging, gas tightness high, 180 days not to need to gasify. The tire tube tensile strength 9.0↑, elongation ratio 500↑ gas tightness is natural gum tire tube' ...