China National Standards

China Limit value maintenance Industry Standards English PDF List

  •  China "Limit value maintenance" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    YD/T 748-1995 Limit value for maintenance of PDH digital channel error performances
    pdh数字通道差错性能的维护限值    		 China Telecommunication Standards
    Limit value maintenance
    English PDF

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