China National Standards

China Wired emergency telephone GB Standards List

  •  China "Wired emergency telephone" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 19516-2017 Wired-emergency telephone system of expressway
    高速公路有线紧急电话系统    		 China National Standards
    Wired emergency telephone
    English PDF
    GB/T 19516-2004 The specifications of wired-emergency telephone system of expressway
    高速公路有线紧急电话系统技术要求    		 China National Standards
    Wired emergency telephone
    English PDF

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