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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40502-2021 |
Technical requirements for active Draghead 主动耙头技术要求 |
China National Standards Draghead |
 English PDF |
| GB/T 39536-2020 |
Draghead tooth of trailing suction hopper dredger 耙吸挖泥船耙齿 |
China National Standards Draghead |
English PDF |
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