Sant'Antonino, 22 August 2008. The Interroll Group, the world's leading supplier of key products for distribution logistics, conveyor technology and automation continues to make good progress with the worldwide patented sorter technology. Interroll Crossbelt Sorters will now also be put into operation in the next few years at the Finnish postal service. Mixed mail will be transported for the first time in the mail sector. The system integrator Siemens Mobility Division was commissioned by the Finnish postal service Itella with the implementation of the project.