凯时官方手机app致力于通过科技改善听障人士听力，
是专业从事助听器等听力产品研发、生产与销售，业务涵盖助听器、听力设备及声学相关的设备的国家高新技术企业。
As a national high-tech enterprise, AST has been devoting itself to the hearing improvement of the
hearing impaired with Science and Technology. Our business covers hearing aids,
listening devices and Audiology-related equipments.
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