1. If it is silver-plated (gold) and the electroplating layer is thick enough, you can gently wipe it with soft paper. The more expensive alloy jewelry electroplating layer is thicker, which should be able to erase some black oxidation.
2. Dip a soft cloth in toothpaste for wiping, wash it with water, and wipe it with a dry cloth.
3. You can also buy a pack of development powder from the photography equipment store. When you go home, add a kilogram of water with clean glassware, stir evenly, soak the jewelry in it, take it out in about 5-10 minutes, rinse it with water, and then wipe it with a dry cloth.
There are many kinds of alloys: lead-tin alloy No. 6, lead-tin alloy No. 3 material, lead-tin alloy No. 0 material, zinc alloy, etc. Because of the promotion of green and environmental protection, zinc alloys are relatively cheap, so most of the environmentally friendly alloy jewelry on the market are zinc alloys.
