The website is online (not only Bross brand) :
https://www.ciclisti.cc/
The Bross zenith plume is pretty hilarious. Plume is feather in french. Yet... 1120-1140g (size M - metal parts incl.). That's 30g less than my LT268, also an aero bike, made w T800.
So, granted, the bross has tubes that are shaped more, but it's also several years younger than the LT.
So i would bet that the claimed T1100 carbon is really to sound cool. It's probably 95% T800 & 5% more.
Also, the narrowest bars are 40cm. Pretty ancient for an aero bike...
All that non sense for eur2.7k. Lol.