But the first step is to test it with a magnet: if it's magnetic, it's steel or iron, so you only options are to paint it or have it replated. If it's not magnetic, it is probably solid brass, bronze, or copper and it can be cleaned aggressively with a strong brass polish. ...
paint may be applied by any means such as spread with a brush, dripped from a brush or any other instrument or sprayed, for example. Alternatively, the surface may be dipped into the paint. By curing, is meant that the solvent will be evaporated, by exposure to the rays of a lamp, ...