... rubberInner Tube Rubber Percentage: 20%,30%,40% and more 2.3. Rim Material: Steel powder and PlasticRim Colour: Reb,Black, ... 8f) 13" x 5.00-6 g) 13" x 3.25/3.00-8 h) 13" x 4.00-6 i) ... equipments,various of mould etc,are most advanced here.1.3. We can design the new products in accordance with ... and tube blending machine,ect are most advanced here.3.All raw material of rubber wheel are good quality, ...