Indoor optical cables are constructed by uniformly distributing multiple strands of aramid fibers around the optical fiber core to provide reinforcement, followed by the application of a flame-retardant outer jacket. They can be installed in limited spaces without causing tangling effects. By selecting high-quality optical fibers, using specialized equipment, employing precision molds, and optimizing the number of aramid fiber strands and cable tension, the product's performance exceeds the requirements of international standards such as ISO/IEC 11801. The product features high-quality performance, with performance metrics exceeding the requirements of standards such as ANSI/TIA-568.3-D, IEC 60794, and YD/T 1258.4: the optical fiber characteristics meet and exceed the requirements of ITU-T G.561, ITU-T G.652.D, and IEC 60793 standards.