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Have high precision and fine materials from copper to low voltage and high voltage, EHV and UHV power transmission and the full range of products, is committed to the global energy network construction, provide electrical engineering turnkey service EPC smart grid, UHV UHV power transmission, ultra high voltage power transmission system of marine solutions and design - Construction - operation and maintenance as one of the solutions is Chinese power transmission industry chain of the whole, the level of industrial structure is the highest energy Internet system (product + engineering + service) service providers, among the world's marine power engineering and EHV power transmission field before the 5 strong.