June 2 (SeeNews) - Croatia's Djuro Djakovic group [ZSE:DDJH-R-A] said on Friday that its unit Djuro Djakovic Special Vehicles signed a 30 million euro ($32.3 million) contract to manufacture and deliver its Tagnpps 95 cubic metres freight rail carriages to GATX Rail Europe (GRE), a subsidiary of US full-service railcar lessor GATX.