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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 778.1-2018 |
Meters for cold potable water and hot water—Part 1:Metrological requirements and technical requirements 饮用冷水水表和热水水表 第1部分：计量要求和技术要求 |
China National Standards 1:Metrological |
 English PDF |
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