Guangzhou DSPPA Audio Co., Ltd.

National Standard GB50526


Technical Code for Public Address System Engineering (National Standard GB50526), mainly drafted and translated by DSPPA is officially published today! This Standard is the first national standard in PA industry.








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  • Tel:+86 020 37166520
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  • Email:export@dsppa.com
  • Address:Jianggao Town, Baiyun District, Guangzhou, China