Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 14381-1993 specification for stored program control digital private automatic branch telephone exchange system $1050.00 via email in 1~3 business day valid
GB/T 14397-1993 Information processing-Start-stop transmission signal quality at DTE/DCE interfaces $160.00 via email in 1~3 business day abolished
GB/T 14398-1993 communication - Arrangements for DTE to DTE physical connection using V.24 and X.24 interchange circuits $120.00 via email in 1~3 business day abolished
GB/T 14399-1993 Information processing systems-Data communication-High-level data link control procedures-Description of the X.25 LAPB-compatible DTE data link procedures $400.00 via email in 1~5 business day abolished
GB/T 14400-1993 Information processing systems-Data communication. High-level data link control balanced classes of procedures. Data-link layer address resolution/negotiation in switched environments $220.00 via email in 1~3 business day valid
GB/T 14401-1993 between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band $450.00 via email in 1~3 business day valid
GB/T 14431-1993 ratios and minimum usable field strengths required in the radio services $450.00 via email in 1~3 business day valid
GB/T 14432-1993 methods for wow and flutter of broadcast tape recorders $75.00 via email in 1~3 business day abolished
GB/T 14433-1993 specifications for coverage networks of colour TV broadcasting $450.00 via email in 1~3 business day valid
GB/T 14434-1993 parameters for broadcasting - Satellite service (BSS) in the band 12 GHz and BSS feeder links $150.00 via email in 1~3 business day valid
GB/T 14435.1-1993 sharing between the broadcasting - Satellite service and terrestrial services - Guide to freguency sharing between the broadcasting - Satellite service (television) and terr $100.00 via email in 1~3 business day valid
GB/T 14435.2-1993 sharing between the broadcasting - Satellite service and terrestrial services-Frequency sharing between the broadcasting - Satellite service (television) and terrestrial bro $115.00 via email in 1~3 business day valid
GB/T 14435.3-1993 sharing between the broadcasting - Stellite service and terrestrial services Frequency sharing between the broadcasting - Satellite service(television)in one side and terres $180.00 via email in 1~3 business day valid
GB/T 14471-2013 General Specification for Headphones $120.00 immediately valid
GB/T 14474-1993 specification for horn loudspeakers $150.00 via email in 1~3 business day superseded
GB/T 14474-2024 Horn loudspeakers—General requirements $375.00 via email in 1~5 business day valid
GB/T 14475-1993 of measurement for horn loudspeakers $150.00 via email in 1~3 business day abolished
GB/T 14475-2024 Horn loudspeakers—Measuring methods $735.00 via email in 1~5 business day valid
GB/T 14557-1993 Electrical tests and measuring procedures for ridio-frequency connectors: Reflection factor $190.00 via email in 1~3 business day abolished
GB/T 14558-1993 Terminal characteristics for group 4 document facsi-mile apparatus $210.00 via email in 1~3 business day abolished
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