The disadvantage is that they are not as solid as steel tracks.

The roof was low and steep and moved on wheels over a steel track.

Later trucks replaced horses and buildings were put on steel tracks.

Machine tools and an overhead crane running on heavy steel tracks.

The wide gate slid open for him and then rumbled shut on its steel track once he was inside.

They move up and down the outside of the building on stainless steel tracks.

The major benefit of trains is that they run on steel tracks.

In particularly hot weather, rail vehicles may be delayed by the expansion of the steel tracks.

This was the first roller coaster to use a tubular steel track.

The steel tracks can be fitted with rubber pads if required.