From their website:
We have expanded our 6mm Modern European range (Range 23) to include five new modern industrial units. These are suitable for use from the 1960s right up to the present and, as usual, they are available in unpainted and painted versions. All of the units are flat on either side so they can be built up as multiple units. We also have several other industrial and commercial models in the pipeline for this range which should be available during the summer.