11.12.2019        Click on images for larger view

 Mannesmann of Germany operated a steel p[rocessing plant in Dalmine, east of Milan, and it is said that post WW2 the Mazzuccato family purchased it and that became ORIA. Mannesmann supplied the steel, then ORIA completed the transition into bicycle tubing.

Nice ORIA article on the Italian Cycling Journal HERE

Interseting special model:  Oria Special TC 0.8 tubes: CroMo tubing with additional reinforcing ridges on the outside.

Various decals indicating ORIA tube set in use

Entire tube set
Picture courtesy eBay seller chrispetso

Chart showing various versions of this tubing