Occupational, Interior, Factory ‘A’ (metal works facility), Production Hall ‘B’, welding (two different processes), hammering, ventilation noise. Industry, industrial, -12 dB, ZM-1-3E

Occupational, Interior, Factory ‘A’ (metal works facility), Production Hall ‘B’, welding (two different processes), hammering, ventilation noise. Industry, industrial, -12 dB, ZM-1-3E