A kind of shunting well system with bottom-open type weir gate and the upper open type gate that surges
A kind of shunting well system with bottom-open type weir gate and the upper open type gate that surges
- CN 207,436,201 U
- Filed: 09/30/2017
- Issued: 06/01/2018
- Est. Priority Date: 09/30/2017
- Status: Expired
- EN CH
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