It is a very high-tech correction to change the ring from small to large. As a result of this correction, the ring will become thinner and this ring will become very fragile. If you don't wear it properly, it will damage the ring holder. Therefore, the ring changes from small to large, and it is best to add metal decoration to ensure foolproof.
Pure silver is metallic silver, and its content is close to 100%. Silver is chemically inactive, but because of its special affinity with sulfur, silver sulfide can be slowly generated in the air, making it black and impure. Moreover, in nature, silver is easily mixed with metals such as platinum, so "pure silver" in life generally refers to 99.99% silver or 92.5% 925 pure silver.
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Matters needing attention in the maintenance of silver jewelry
1, primary color, polished surface, the simplest. Just wipe it with a silver cloth. If there are cracks in the unpolished surface, it can be cleaned with silver water.
2. The electroplated surface should be wiped with a soft cloth, because the electroplated layer is very thin, and the wiping of rough cloth and the damage of chemicals will affect the surface brightness.
3. Take it down and store it in a dry place when taking a shower and sleeping. Pure silver is a kind of metal that changes color easily, and of course it should change color.
4. Tibetan silver, according to historical definition, is an alloy containing about 30% or more silver, but there is almost no silver in the market. It's just a handicraft of white copper alloy.
5. Generally, Macarthur is full of silver, that is, the silver content is 999 per thousand. Some people who prevent 925 silver from being vulcanized into "ancient silver effect" by Thai technology are also called "Macasite". Generally, the domestic production of Macarthur is relatively simple, so the price is lower than that of 925 silver plated with platinum.
Baidu encyclopedia-sterling silver