保护听觉，用于纺织、矿、燃机、机场、船厂、械制造厂等附有强噪声源的工作场所。
Provides hearing protection. ldeal for use in textile, mining, airport, boat plant, mechanical manufacturer, and related fields where serious noise presents.
保护听觉，用于纺织、矿、燃机、机场、船厂、械制造厂等附有强噪声源的工作场所。
Provides hearing protection. ldeal for use in textile, mining, airport, boat plant, mechanical manufacturer, and related fields where serious noise presents.
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