It's Italian, is it? So maybe they have a different standard.
An ordinary UK rose in white plastic will have enoungh loop-in and loop-out terminals for UK wiring conventions, and no UK person will notice it is not an Italian one. Crabtree, MK and MEM are three good brands. There are also some cheap ones around. It it is a heavy fitting, UK standard is to screw a metal hook through the ceiling into a joist for the supporting chain.
just throw away the cord and lampholder it comes with
You might be able to get one with a real or fake chrome cover at a specialist lighting shop for ten times the price. Any metal will have to be earthed.
I don't understand from your picture if it is hung on cords, or if those are three (or more) white insulated single-core flexes.