Single-identification concave-line drill rod (Type H22)
CN309403260SActive Publication Date: 2025-07-25SHANDONG ROCK DRILLING TOOLS CO LTD
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Patent Information
- Application Number
- CN202430775035.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2039-12-06
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Figure 000001_ABST
Abstract
1. Name of the Design Product: Single-identification Concave-line Drill Steel (Type H22). 2. Use of the Design Product: For drill steel products in rock drilling. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.
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