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In recent years, with the change of urban development policies, civil motor units are gradually becoming popular, especially in the development of single family buildings and small villas around the second and third tier cities. Due to the supply and distribution problem of public power grid, the demand of residents for civil power units becomes extremely important. However, at present, most of the finished product assembly of domestic units still adopts the industrial and high-rise building power distribution as the standard For civil use, it is not only high cost, but also difficult to maintain and operate.
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