Is anyone familiar with the tubing designation AQ 35? It is on an entry level "Mirella" model LERI made bike with Campagnolo: steel "Sport" (3 spoke) cranks, Nuovo Record rear mech, Record front derailleur, Record shifters; Ballila brakeset; 3T Record stem. The tubing decal states: "Tubi Speciali Senza Saldatura Acciaio LERI AQ 35". I have never heard of it; by the description I know it is a seamless tubing but that is all. What company manufactures it?