GYXTS [metal reinforcement member, polyethylene bonding sheath central bundle type fully filled outdoor optical cable for communication] The structure of the optical cable is to insert multi-mode or single-mode optical fiber into high-modulus plastic to make it filled with waterproof compound. in the loose tube and in the center of the cable. The steel wire reinforcement is twisted around the central sleeve to form a compact and round cable core, the gaps in the cable core are filled with water-blocking compounds, and the polyethylene sheath forms the cable.