Drain pipes (RM)

Organ pipes (RF)

Organ pipes (RM)

Rainy weather (RF)

Gutters (RM)

Rainwater (RF)

Smoking (RF)

Horizontal drilling in the remote heat (RF)

Thermo-Electric power (RM)

Thermo-Electric power (RM)

Plastic tubes (RM)

Flycatchers (RM)

Tubes (RF)

Tubes (RM)

Iron (RM)

Metal and steel industry (RM)

District heating installations (RM)

The stack of sheet metal (RM)

Petrochemical Industry (RM)

Götaverken, Gothenburg (RM)

Petrochemical Industry (RM)

Petrochemical Industry (RM)

Petrochemical Industry (RM)

Slang (RM)

Waterspout (RF)