Acoustic pipe one-way check valve (anti-scratch type)
CN309685130SActive Publication Date: 2025-12-19CANGZHOU ZHONGHUANG NEW BUILDING MATERIALS CO LTD
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Patent Information
- Application Number
- CN202530054157.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2040-02-06
Smart Images
Figure 000007_ABST
Abstract
1. The name of the design product: one-way check grouting valve (anti-scratch type) of sounding tube. 2. The use of the design product: anti-scratch one-way check grouting device used in the construction process of buildings, tunnels, etc. 3. The design points of the design product: the overall shape and the anti-scratch sheet structure. 4. The picture or photo that best indicates the design points: perspective view.
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