1.armored optical cable could be duct,direct burial. 2.ISO9001,TCL standards 3.Fiber count:2fibers to 288fibers Name:Stranded Loose ... Tube Light-armored Cable(GYTS)Structure·DescriptionThe fibers, 250 ... A steel wire, sometimes sheathed with polyethylene (PE) for cable with high fiber count, locates in the center of core as a ...