Wedico kamionom
Possibly made by Wedico.
http://www.wedico.de/eng/
Update: it might be a Robbe truck, at least it is very similar to this one:
https://www.andreas-edler.de/blog/2005/07/robbe-truck/
The trailer seems to be a Robbe 3631 Montagenkasten trailer:
http://www.modellbauparadies.de/Montage ... -Baukasten