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| Manufacturer | Lien Yundong Labour Insurance Co. Ltd. |
| Category | Hearing protection |
| Price | ￥2.8 |
| Origin | China |
| Imported or not | Yes |
| Brand | 3M |
| Model | 328-1000 (wireless), 328-1001 (wire) |
| Materials | PU |
| Noise reduction rate | 30 |
| Implementation standards | Standard |
| Functions | Noise insulation, hearing protection. |
| Scope of use | Noise insulation, hearing protection. |
| Feature services | Good security. |
| Series | FlexibleFit |
| Connect Lines | Yes. |
| Dimensions | Standard |
| Usage | Directly, free. |
| Classification | Soundproof ear plugs |
| Effectiveness | Noise-mitigation |
| Packaging Method | First payment/ Box |
| SNR | 30 |
| Could you wash it? | Yes. |
| Ear plug head shape | Umbrella |
| Earplug colour | Fluorescent Yellow |
| Goods | 328-1000 / 328-1001 |
| There's an authorized brand. | Yes. |
| Whether or not to export a source of goods exclusively across borders | Yes |
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