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| Product alias: | Air hammer |
|---|---|
| Scope of application: | Highway and railway construction site |
| Hole diameter: | 70（mm） |
| Drilling speed: | 350（mm/min） |
| Impact energy: | 25J |
| Impact frequency: | 37（Hz） |
| Specifications: | YN27 rock drill |
| Drilling depth: | 70（m） |
| Brand: | Hongji |
| model: | YN27 |
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