The Division Series are high-modulus aramid yarn aramid yarn, suitable for ADSS fiber optic cable, non-metallic fiber and indoor fiber optic cable. Aramid yarn with low density, high tensile modulus, high breaking strength and elongation and low special performance; at higher temperatures, can maintain the inherent stability, very low shrinkage, low creep and a very high glass transition temperature, the other has a high corrosion resistance, non-conductive, in addition to strong acid and strong base, but has a strong anti-chemicals will be able to, is a superior fiber optic cable to enhance cell material.