Malaysia brand: R, Xiwei fly.
factory state are light track. A group of 40, section is circular, the color with black and white two.
1, the advantages of natural rubber latex as: wire, which is the main component of CIS polyisoprene, with excellent elasticity, insulation, water resistance, plasticity, high tensile strength, tear resistance and good wear resistance, easy to glue and other materials and other characteristics, after appropriate treatment is also resistant to oil, acid, alkali, heat, cold, pressure resistance, wear resistance and other valuable properties, so it has wide application, good elasticity, no deformation,
2, disadvantages: easy to aging in air, hot viscosity, easy expansion in mineral oil or gasoline and dissolved, but not resistant to strong acid and alkali resistance.
