Yes, I've just looked at the Woma website http://www.woma-cn.com/BRICKS/small.asp and I can see they have a matching set with Construbricks for a mechanics workshop. Good figuring out Thrund.
On their website they do mention having a factory - but who knows really. They only seem to have a few of those detailed sets, and their other stuff is basic brick styles. They have a younger kids duplo look range too, although some figures are duplo like and others are quite different (old duplo style? another style?)
Anyway - I haven't been able to resist that Pizza parlor, so when it arrives I shall report back on quality.