its a bianchi steel-frame bike from "back in the day" On the bottom braket, it says that it was made in Japan. It has friction shifters, and honestly, i like my friction shifters better then my friend's 105 index shifters, they're much smoother and require less adjustment (the adjustment is for YOU not your bike)

Will any chainrings fit any crankset? I noticed when looking around that there are ultegra chainrings and dura-ace chain rings, as well as several other no-name chainrings.