vibration bar screen hong hong

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4 noise impact assessment - Environmental Protection Department

P:\Hong Kong\INF\Projects2\204417\Environmental\EIA Report\Final (Revised . Loading, unloading or handling or rubble, wooden boards, steel bars, wood or . vibration levels to groundborne noise levels is determined by the following factors: .. provide sufficient screening effect ranged from 5 to 10 dB(A) reduction is 

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