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Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED
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GB 6280-1986 Capacity series and frequency channels arrangement in 25 to 1000MHz land mobile telecommunication network via email in 1-3 business day please email coc@codeofchina.com for quotation
YD/T 1713-2007 Technical Requirements and Testing Methods of Incoming Power Disturbance Alarm System for Main Distribution Frame via email in VALID please email coc@codeofchina.com for quotation
YD/T 1712-2007 Environmental Requirements for Telecommunication Houses via email in ABOLISHED please email coc@codeofchina.com for quotation
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