... consists of inner layer, fiber heat insulation, cover layer, anti-wear rubber strip. It has advantages of lightweight, soft, no-leakage, and ... layer, fiber heat resistance, cover layer, metal spire, and anti-wear strip. It is applicable under bent state condition. 2> Nominal inside ... or ozone aging, heat resistance, rain or water proof. Anti-wear rubber strip It is made of natural SBR which has good ...