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Noise Level Crushing

crushing mills, among many others. In many countries, noise-induced hearing loss is one of the ... Agency EPAUSA report in 1981, there are more than nine million Americans exposed to a daily average occupational noise level above 85 dBA this number has increased to about 30 million in 1990.

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  • 40-Year Qualified Brand

    Founded in the 1970s, it has a history of more than 40 years.

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