June 19 (SeeNews) - Croatia's Djuro Djakovic group [ZSE:DDJH-R-A] said on Monday that its special vehicles signed a 4.2 million euro ($4.6 million) contract to manufacture and deliver its Shimmns TTU freight rail carriages to GATX Rail Europe (GRE), a subsidiary of US full-service railcar lessor GATX.