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, 250μm, are positioned in a loose tube made of a high modulus plastic. The tubes are filled with a water-resistant filling compound. A steel wire, sometimes sheathed with polyethylene (PE) for cable with ...