GYTS/GYTA cable is a type of the outdoor cable used for duct and direct buried applications with corrugated steel tape or aluminum tape. SZOPT supplies both single mode and multimode GYTS cables.PBT loose tube has 2-12 fibers, The central Strength member is: steel wire. It has a Filling Compound; Longitudinal corrugated steel tape laminated with polyethylene on both sides. Consequently.