"specificaton " CNS Standards List| Oil Tempered | Arc Welded | Broadband Integrated | Sodium Thiosulfate | Methods Testing | Unplasticized high | Marking Hatchway | Method test | |
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CNS 13930
2018 Edition ISDN basic user-network interface - Layer 1 specificaton 整體服務數位網路基本用戶網路間介面–第一層規範 |
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