The fibers are positioned in a loose tube made of high modulus plastic and filled with gel. Tubes (and fillers) are stranded around the non-metallic strength member (FRP) to form the cable core. Then the core is filled with water blocking yarns and longitudinally wrapped with water blocking tapes. The cable is completed with a PE outer jacket.
Equipped with the most advanced fiber drawing towers, high-speed proof testers,and other optical and mechanical testing facilities, CROFC is capable of producing 15 million core kilometres fibers and cables with superior performance.