Steel is essential for modern warfare. These slag cars are for removing waste material from a steel mill.
They are very important and lots of them are often found at active steel mills.
They are a specialized car and are not found anywhere else.
This is a Walters three pack kit, three identical models with different numbers on the end.
The kit is pretty easy, the instructions are not that great. I got three, for use with my Walthers Steel Mill kits. They are HO scale and precolored in a nice gray. Stalingrad was fought in part over steel mills!
