China National Standards

China GSM CDMA emergency Industry Standards English PDF List

  •  China "GSM CDMA emergency" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JT/T 621-2005 GSM/CDMA emergency telephone system for highway
    公路gsm/cdma数字紧急电话系统    		 China Highway & Transportation Standards
    GSM CDMA emergency
    English PDF

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