"ISDN " CNS Standards List

CNS 13828 2018 Edition
Integrated services digital networks (ISDN)-features and evolution
整體服務數位網路（ＩＳＤＮ）特徵及演進

CNS 15517 2017 Edition
Preamble and General Structure of the Series Standards for the Integrated Services Digital Network (ISDN)
普通預拌乾混水泥砂漿料

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