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Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED
Standard No. Title Price(USD) Delivery Status Add To Cart
YD 610-1993 960 (USD) via email in 1-8 business day
GB 6878-1986 Technical requirements and testing methods for local crossbar telephone switching systems 195 (USD) via email in 1-3 business day ABOLISHED
YD/T 748-1995 375 (USD) via email in 1-3 business day VALID
GB 6880-1986 270 (USD) via email in 1-3 business day ABOLISHED
YD/T 795-1996 450 (USD) via email in 1 business day ABOLISHED
GB 3267-1982 The specification and test methods for conference telephone tandem board 150 (USD) via email in 1-3 business day ABOLISHED
YD/T 922-1997 Performance and test methods of the inegrated multiplex equipment using in the digital channel 310 (USD) via email in 1 business day VALID
YD/T 1136-2001 Technical requirements and testing methods of basic access terminal adapter(TA)of integrated sevices digital network (ISDN) 1035 (USD) via email in 1-8 business day VALID
YD 336-1988 Digital Line Signalling for Manual Toll Exchange to local Exchange 120 (USD) via email in 1 business day VALID
YD/T 1018-1999 Digital circuit multiplication equipment using ADPCM and DSI 945 (USD) via email in 1-8 business day VALID
YD/T 974-1998 Specifications and Measurement Methods for SDH Digital Cross Connect Equipment(SDXC) 1695 (USD) via email in 1-10 business day VALID
YD/T 989-1998 The Technical Requirement of Flexible Multiplexer 640 (USD) via email in 1 business day ABOLISHED
YD/T 631-1993 345 (USD) via email in 1-3 business day
YD/T 743-1995 180 (USD) via email in 1-3 business day
SJ 20981-2008 via email in VALID please email coc@codeofchina.com for quotation
YD/T 1116-2001 Digital Distribution Frame with Wire Sleeve Coaxial Connectors 195 (USD) via email in 1-3 business day ABOLISHED
YD 335-1988 Digital Line Signalling for Intertoll Exchange 210 (USD) via email in 1 business day ABOLISHED
YD 285-1982 240 (USD) via email in 1 business day VALID
YD/T 742-1995 285 (USD) via email in 1-3 business day VALID
YD/T 1355-2005 Technical requirements and test method of Mini-BITS equipment 420 (USD) via email in 1-3 business day VALID
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