 |
国家标准(GB) |
11万 | |
|
|
国家计量技术规范(JJF) |
2777 |
JJF(通信) 046-2020 窄带物联网 ... 2023-9-21 16:46 Ayayeye
|
|
|
国家计量检定规程(JJG) |
3192 | |
Archiver|手机版|小黑屋|标准网 ( 浙ICP备19005909号 )
GMT+8, 2023-10-3 04:33 , Processed in 0.034896 second(s), 14 queries .
Powered by Discuz! X3.4
© 2001-2023 Discuz! Team.
