To protect the luster of gold jewelry, can be coated with a thin layer of nail polish. If the surface has black silver film, salt 2 grams, 7 grams of baking soda, bleachingpowder 8 grams, 60 ml water, made into "gold cleaning agent", put the gold jewelry in a bowl, pour into the cleaning agent, after 2 hours, will take gold jewelry, with water(preferably not used) after rinsing, buried in the wood drying, and then with a soft cloth to wipe.
A jewelled ring roll with the match stick a piece of cotton, in the toilet water and glycerol mixed solution after wet scrubbing framework, and then polished with velvet ring. Do not use sharp objects to scrape blade etc..
Salt and vinegar mixed into the cleaning agent, use it to wipe the pure gold jewelry,can make it fresh.
Wipe toothpaste or piping hot rice soup thick scrub, but also restore luster of gold jewelry.
The soot and an equal amount of vegetable oil mixed, gold jewelry into which the scrub, will make gold jewelry has become glittering
Of course, the proposal was sent to the large number of gold, they have specialized technical staff, reagents, such as ultrasonic cleaning equipment cleaning jewelry.