Sulfurized manhole covers (anti-settlement, noise-proof, and waterproof)
CN310047564SActive Publication Date: 2026-06-23LONGYAN XIANGRUI DUCTILE IRON CASTING IND & TRADE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- LONGYAN XIANGRUI DUCTILE IRON CASTING IND & TRADE CO LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-06-23
Smart Images
Figure 000007_ABST
Abstract
1. Name of this design product: Vulcanized manhole cover (anti-settlement, noise-proof and waterproof). 2. Application of this design: It is used in urban roads, squares, underground facilities and other scenarios to cover manhole openings, and plays a role in sealing and protecting, preventing settlement, and preventing dryness and water. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
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