Optical Fiber Cable,The structure of GYTY53 (outdoor optical cable used for telecommunication with metalliccentral strength, 

loose and layer-stranded tube style,aluminum-polyethylenecover, and vertically corrugated steel tape armored)  is covering the 

inner-fulfilled waterproofcompound loose tube, which is made of high modulus plastic, with the singlemode and multi-mode optical 

fiber. The center of the cable’s core is steelwire. For some optical cables with certain number of core, this steel wirecould be a strand, 

or covered with a tight pack of polyethylene (PE). The compact and round shape cable core is a combination of the loose sleeve pipe 

(gasketfor packing) and center-strengthened core, the gap in the cable core is filledwith water retarding compound. The polyethylene 

over layer will be made after the steel belt is covered vertically. The PE sheath should be covered on theoptical cable core, The

polyethylene overlayer will be made after thedouble-side plastic-plated steel belt is covered vertically.