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9

Mechanical and plant engineering

Construction and construction material machinery

Preparation installations and machines for building materials

3179.16

Rails ballast processing plants

3179.53

Ballast processing plants

3179.54

Gravel, sand and ballast screening machines

3179.80

Sand drying plants

3179.81

Sand catchers

3179.82

Log washers

3179.96

Washing and classifying plants