Guangzhou Octave Piano Service Co., Ltd. Guangzhou's first professional conduct for piano tuning, maintenance, leasing and piano sales, piano sales and maintenance of automatic playing system and other related business and technical services for the integrated enterprise, the company owned by the State Light Industry recognized by the Ministry of skill assessment, senior mechanical engineers, lawyers and adjust the composition of the elite teams, professional, dedicated service for the general sense of commitment to the piano music lovers and parents to provide a service, an interactive platform for exchange 

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