Description: Industrial Furnace Ventilation: Close Low Motor Roar, Duct Work Rattle

Description: Steam Powered Wood Mill: Steam Hopper: Start With Heavy Steam, Run

Description: Steam Powered Wood Mill: Main Steam Engine: Run at Low Speed, Light Activity

Description: Steam Powered Wood Mill: Main Engine: Running, Close to Drive Shaft, Constant Steam

Description: Steam Powered Wood Mill: Hopper: Running, Heavy Clatter

Description: Oil Refinery: Large Fan: Running Close

Description: Steam Powered Wood Mill: Machine: Running, Constant Rhythmic Clatter, Light Steam, Shut Down

Description: Steam Powered Wood Mill: Light Machine Clatter, Distant Saw

Description: Oil Refinery: Turbine Compressor: Running

Description: Oil Refinery: Large Fan: Running, Heavy Constant Roar

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