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Gansu Tianxi Innovation Technology Co., Ltd. is a enterprise specializing in designing, manufacturing and selling portable mini vibration speaker (vibro /vibrating speaker, resonance audio/sound), computer speaker and music wall. We have obtained many national patents for technology vibration resonance which is the core technology of our co***ny. The vibration speaker using our self-developed core of technology called of GMM (abbreviation of ¡°rare earth giant magnetostrictive material¡±), which has sub...
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