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The designing, production and service process for Optical fiber cable, Communication cable, Dada cable, Coaxial cable, Cables and wires for rated voltages up to and including 450/750V, and Flame-retardant and fire resistant flexible cable for power supply system for telecommunications; The production and service process for Optical passive devises (including optical fiber connector, fiber coupler, optical splitter), and distribution equipments for communication; The production and service process for Optical fiber. |