Rolling stock consists exclusively of vehicle emission Euro 5 EEV Euro 6 Trailers are certified to DIN EN 12642 Code XL . Some semi-trailer are equipped with a special tarpaulin to protect against intrusion , called . Vandal Tilt . In Naso fleet find trucks made by Mercedes Benz Actros 1844 LS Scania R450 , trailer Schmitz , Kögel . Currently we have 17 road tractor semi-trailer 20 .