Not so certain about Fiorelli marked stuff only being availabe for this make frame. You will have to ask someone like Norris to give a definitive answer but Frejus marked stuff like brakes, headsets, hubs and cranks could be purchased here in the 50/60's to fit on any make of frame. This probably applies to Fiorelli marked stuff as well. In the 60's here in the UK Fiorelli's were very exspensive and were not highly rated Italian gas pipe is one term used that springs to mind. They seemed to hang around in Ross Cycles of Balham for an eternity not like the Grandini's these just flew out of the shop.
Frank Cohen Hoxton UK