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GB/T 18903-2002 in English
Information technology-Quality of service: Framework
VALID
Issued on:2002-12-04 | Implemented on:2003-05-01
$640.00 $621.00 -
GB/T 41151-2021 in English
Sustainable cities and communities descriptive framework for cities and communities
VALID
Issued on:2021-12-31 | Implemented on:2022-04-01
$690.00 $670.00 -
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