标题: cheap gold chain jewelry [打印本页] 作者: uiyophkn 时间: 2010-1-28 12:10 标题: cheap gold chain jewelry Unfortunately, many people, especially the female population are allergic to nickel in contact with skin and this leads to a red rash or skin irritation. The countries of the European Union adopted legislation, from January 20, 2000, restrict the release of nickel jewelry. Replace in Europe, which should be removed and the white gold and nickel by palladium white gold. The United States is a loose approach, which should be considered jewelry containing nickel, and many jewels in the West are now allergens the advertising is not or nickel. [See separate information sheet The EU Directive on nickel. And Article Gold Technology, No. 28, and the spring of 2000,heart charm bracelets, nickel slips under the skin.
Apart from copper, all other metals in gold alloys tend to make the color white, so it is possible gold Karat, who is white do. White gold jewelry was in the 1920s as a substitute for platinum. It adds a white metal to gold is the rule of white. In practice, the attitude and nickel and palladium, platinum are a strong platform of gold, silver and zinc are moderate and all others are moderately or weakly effective. This has resulted in 2 main categories of white gold - white and white nickel Palladium. The 9-carat, 37.5% of a gold-silver alloy is quite white, but is flexible and elastic used for jewelry. White gold is 21 carats. There is no legal definition of what is meant by a white color of gold and trade gold therefore white can mean white wash. Much white gold trade is not very white.
&nbsp,gucci necklace heart;&nbsp,Tiffany Accessories;They work hard and suffer from the so-called fire-cracker. Most commercial alloys based on gold-silver-zinc-nickel copper, are often added to improve malleability. This has also affected the color of copper alloy and white gold is a good white color - a lighter yellow-brown, especially when nickel is also very low. After such a white gold jewelry, usually platinum, rhodium galvanized metal that offers resistance and expects to corrupt a good white.