Stainless steel tube armored distribution optical  cable (GTXTGH) is a seamless steel tube formed by putting optical fiber or optical fiber and aramid fiber into loose-tube stainless steel tube at the same time, and welding the steel tube strip longitudinally by laser, with aramid fiber or fiber paste in the middle, which forms a good protection for the optical fiber. According to different applications, the sheath adopts LSZH or PE or PA sheath, which can be directly laid in computer room and harsh environment, saving space and reducing construction cost. It has the characteristics of tensile, compressive and rat bite prevention.