GYTZA Flame-retardant Stranded Loose Tube APL Armor Optical Fiber Cable
The fibers are positioned in loose tubes that are made of high-modulus plastic and filled with tube gel. The tubes (and fillers) are stranded around a metallic central strength member to form a cable core. The core is filled with water-blocking compound and then armored with laminated aluminum tape(APL). Finally, a LSZH outer jacket is extruded