GYXTY optical fiber cable should be in line with GB / T9771 provisions of B1.1 class (that is, non-dispersion shifted single-mode fiber), B1.3 class (both non-extended wavelength band dispersion shifted single-mode fiber), B4 class (ie, non- zero dispersion shifted single-mode fiber), B5 class (both wide wavelength band optical transmission zero dispersion single mode fiber) or user requirements of other applicable categories of single-mode fiber. GYXTY cable, SMIC tubular communication outdoor optical fiber cable with loose tube, wire and sheath composed of a number of optical fibers, suitable for pipes, buried, tunnels, and other non-self-supporting aerial conventional way of laying communications. It features a large transmission capacity; less attenuation; long distance transmission; small; light weight; no electromagnetic interference, low cost, is currently the most promising communication transmission media. It is widely used in the signal transmission in telecommunications, electricity, radio and other departments. GYXTY cable production process: 250μm fiber set into the high modulus material loose tube, loose tube filled with waterproof compound, loose tube water-blocking material is applied to ensure the cable watertight, placing two parallel sides steel, polyethylene sheath communication outdoor fiber optic cable;