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Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED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 5069-1998 The Engineering Design Specification of Mobile Data Network (USD) via email in 1-5 business day VALID
YD/T 551-1992 Document facsimile transmission(group1)in telephone network (USD) via email in 1 business day VALID
YD/T 558-1992 The Xin-8 Transposition System for Open-wire Telecommunication Lines (USD) via email in 1-3 business day VALID
GB/T 10198.1-1988 Requirements for facsimile apparatus-Group I documents facsimile apparatus (USD) via email in 1-3 business day ABOLISHED
GB/T 11054-1989 Characteristics of special quality leased circuits with basic bandwidth conditioning (USD) via email in 1-3 business day ABOLISHED
YD/T 557-1992 The Xin-4 Transposition System for Open-wire Telecommunication Line (USD) via email in 1-3 business day VALID
YD/T 800-1996 (USD) via email in 1-3 business day
GB/T 4827-1984 Requirements of data transmission at 50 bit/s (USD) via email in 1-3 business day ABOLISHED
GB/T 39083-2020 Specification of express service payment information exchange (USD) via email in 1 business day VALID
GB 4828-1984 Transmission requirements of frequency-modulated voice-frequency telegraph for a modulation rate of (USD) via email in 1-3 business day ABOLISHED
GB/T 12365-1990 Technical parameters for short distance optical cable transmission of broadcasting and television (USD) via email in 1-3 business day
YZ/T 0141-2015 Guidelines of express service information exchange for cash on delivery via email in VALID please email coc@codeofchina.com for quotation
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