Pig iron cars entering the furnaces
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/12814307@N00">LHOON</a> from Mechelen, Belgium
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/lhoon/276617775/">Cast iron cars entering the furnaces</a>