Wires and cables are wire products used to transmit electrical (magnetic) energy, information, and realize electromagnetic energy conversion. There is no strict difference between wire and cable. In a broad sense, wire and abc cable can also be called cable. Products with a simple structure and no protective layer are usually called wires, and products with a protective layer outside the insulation are called cables.
As one of the largest supporting industries in the national economy, the wire and cable industry ranks second in the subdivisions of my country’s machinery industry, second only to automobile manufacturing and parts and accessories manufacturing. It is the foundation of each industry. Products are widely used in electric power, rail transit, construction engineering, new energy, communications, ships/ships, intelligent equipment, metallurgy, petrochemicals, port machinery and marine engineering, industrial and mining and other fields. They are known as the "vascular" and "nerves of the national economy" "It is closely related to the development of the national economy.
From the perspective of the upstream and downstream of the wire and cable industry chain, the upstream of the wire and cable manufacturing industry is mainly the production and manufacturing of basic raw materials. The main structure of the wire is "conductor + insulation", and the main structure of the cable is "conductor + insulation + sheath". The conductor is generally made of copper, aluminum or copper-aluminum alloy, and the insulation and non-metallic sheath are generally made of plastic, rubber and It is made of materials such as elastomer, and the metal sheath is generally made of materials such as copper, aluminum and steel.
The middle reaches of the wire and cable industry chain are mainly the manufacturing of various wire and cable products. At present, there are a large number of wire and cable companies in my country, generally small in scale, and low market concentration in the industry.
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