What materials do cable

Fiber (optical fiber cable) mainly by the optical fiber (hair-thin glass) and plastic casing and plastic skin protection composition, there is no cable gold, silver, copper and aluminum and other metals, usually no recovery value. Fiber optic cable is a certain amount of the composition according to the cable a certain way the heart, outsourcing a jacket, and some coated outer sheath, an optical signal transmission to a communication line.Namely: the optical fiber (optical carrier) through a certain process and the formation of the cable.