... Optical Fiber Ribbon Cable For Access Network GYDXTW(12-216), Standards: YD/T981, IEC60194 Temperature: operating temperature: -40'C~+70'CCharacteristic os product ... : central tube, parallel steel wires, corrugated steel tape armoring type; small diameter, lighter, more fiber; excellent ... network; Entrance to access network; Central Tube Optical Fiber Ribbon Cable For Access Network