unitube mining flame-retardant optical fiber cable

Description:The fibers 250um are posited in a loose tube made of high modulus plastic.the tubes are filled with a water-resistant filling compound.the tube is wrapped with a layer of PSP ,between the PSP and the loose tube water-blocking material is applied to keep the cable compact and watertight.two parallel steel wires are placed at the two sides of the steel tape.at last the cable is completed with a flame-retardant sheath.Characteristics:1.having excellent mechanical and