Try not to bring it when you take a bath or sleep, so that the quality of the opponent chain will be affected by the long time. Do not touch acid, alkaline substances. Regularly go to the place where you purchased it for professional cleaning. Don't take it easy to clean it in a small shop. On the one hand, it is not professional, and it can also reduce the weight of the original necklace. The discoloration or fading of gold jewelry is closely related to the sweat of the human body. 99% of human sweat is water, and about 1% is waste and harmful substances in the human body, such as: chlorinated substances, lactic acid, urea ammonia and so on. When these materials come into contact with silver and copper in gold jewellery, they produce a chemical reaction that produces silver chloride and copper sulphide and exhibits a deep black chemical salt. Chemical salts often fall from gold jewelry, contaminating the wearer's skin, leaving a very noticeable black stain on the skin. At present, cosmetics have become one of the "characters" indispensable to people's lives. If it is applied to the skin where the gold jewelry is worn, it will undoubtedly provide opportunities for cosmetics containing chemical substances and gold jewelry that is afraid of chemical erosion. The result is conceivable. Also, don't let gold jewelry touch a variety of cosmetics. Since some of the commercially available cosmetics contain trace amounts of mercury (mercury), white jewels may appear white or white after contact. At this time, you can't use your knife or sandpaper to treat your gold jewelry. As long as the white spots or whitening jewels are baked in the fire and then wiped clean with a soft cloth, the gold jewellery will return to its original luster. Knitted Jersey,Polyester Fabric Raw Materials,Flower Pattern Knitted Fabrics,Purple Bronzing Fabric Shaoxing Weihui International Trade Co.,Ltd. , https://www.weihuifabric.com