GYTA53 Outdoor Optical Cable is a steel belt armored outdoor direct buried optical cable. The center of the cable core is a metal reinforced core. For some optical cables with a certain number of cores, a layer of polyethylene (PE) needs to be extruded outside the metal reinforced core. The loose tube (and filling rope) is twisted around the central reinforcing core, coated with plastic aluminum strip (APL) longitudinally and extruded with a layer of polyethylene inner sheath, and the double-sided plastic coated steel strip (PSP) is longitudinally wrapped to form a cable with polyethylene sheath.