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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 11828.4-2025 |
Water Level Measuring Instruments - Part 4: Ultrasonic Water Level Gauges {译} 水位测量仪器-第4部分：超声波水位计 |
China National Standards Water Level Measuring |
 English PDF |
| GB/T 11828.2-2022 |
Water Level Measuring instruments - Part 2: pressure type water level gauge {译} 水位测量仪器 第2部分：压力式水位计 |
China National Standards Water Level Measuring |
English PDF |
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