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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 38620-2020 |
Methods of evaluating the performance of ultrasonic levelmeter 物位计性能评定方法 |
China National Standards levelmeter |
 English PDF |
| GB/T 38615-2020 |
General specification of ultrasonic levelmeter 超声波物位计通用技术条件 |
China National Standards levelmeter |
English PDF |
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