NATURAL INNER TUBESSPEC.N.WEIGHT7*13/4TR87(弯嘴）100G10*350-4TR13(直嘴）180GTR87(弯嘴）190G325/300-8TR1230G英式嘴230G14*350-8TR13(直嘴）270GTR87(弯嘴）270G16*400-8常规TR13(直嘴）370GTR87(弯嘴）370G16*400-8高含胶量TR87(弯嘴）420G400-8，斜纹，窄模，高含胶量大长嘴350G350-10斜纹高含胶量TR87(弯嘴）350GBUTYL INNER TUBESSPEC.N.WEIGHT155/165-13TR13(直嘴）660G175/185-14TR13(直嘴）800G300-17(motor inner tube）TR4**300-18(motor inner tube）TR4**410-18（trail bike inner tube）TR4**