"priority " CNS Standards List| Ring Gauge | Specification qualification | 50Ω 75Ω | Method test | Countersinks 120° | Dental Wrought | Cone proof | Method Test | |
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CNS 14724
2018 Edition B-ISDN user part - Call priority 寬頻整體服務數位網路使用者部—呼叫優先權 |
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