Wire and cable belong to electrical machinery and equipment manufacturing industry in the classification of national economy industry. Wire and cable products are distributed in all walks of life, involving civil, industrial, medical, automobile, computer, communication and so on. The wire and cable industry belonged to the "machinery industry" at the earliest, and the former Ministry of Machinery Industry, communication cables and optical cables later came under the jurisdiction of the Ministry of Posts and Telecommunications. Now it should belong to "electrical machinery and equipment manufacturing industry", and it should belong to "electrical appliance industry" accurately and reasonably.