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Retail services relating to stereo and recording equipment for broadcast, reproduction of sound or images, backups of magnetic registration and acoustic disks for third parties; horns, speakers, amplifiers, reproductive, loudspeakers and all it related to the industry of the audio and video for third parties; recording studio equipment including processors of audio and video for third parties; musical instruments for third parties; lighting equipment for settings of theater for third parties; load center team sale purchase for takes of electric current for third parties; excluding the massive, sports, cultural, corporate, social events publicity services, congresses and conventions