2023-4-2 3.226.122.122
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Code of China
International Standard List: Telecommunication services. Applications

YD/T 2054-2009 Technical requirements of content filter based on WAP gateway 
  Issued on: 2009-12-11   Price(USD): 150.0
YD/T 1537-2006 Generic Requirements for Telecommunications System Outdoor Cabinets 
  Issued on: 2006-12-11   Price(USD): 270.0
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