You can get the chrome polish at any auto parts store or hardware store. A cloth, or soft rag are handy to for polishing. Any brand will do as long it polished metal, chrome, aluminum, gold etc.
Use AutoSol paste. I use it on my mags and it works very well. You can also use it on anything that needs to shine like your precious jewelries. It cost P294 only isang tube na parang big toothpaste size.