Chow Tai Fook's gold will be marked with CTF, which means Chow Tai Fook's English name.

Thousands of gold with a gold content of not less than 999 is called thousands of gold, which is the highest value in jewelry color naming. The stamps are thousands of gold, 999 gold, 999 gold or g999 gold. The imprint of gold jewelry includes manufacturer's code, material and purity, such as X Gold 990, XAu990 and X Pure Gold.

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The gold content of jewelry is an important indicator of its quality. There are many methods to test gold content, which can be divided into chemical analysis and instrumental analysis. According to whether jewelry is damaged in the process of testing, it can be divided into nondestructive testing and destructive testing. In the daily inspection of jewelry quality supervision department, nondestructive testing is the main method, and density method is combined with X-ray fluorescence spectrum, electron probe and other large instruments for analysis.

For a long time, solder has been used to make thousands of gold jewelry. The use of welding solder causes the shortage of gold content in jewelry as a whole, and also saves the cost for manufacturers. The use of welding solder directly determines the overall purity and value of the purchased jewelry.

Everyone buys thousands of gold, please choose a regular manufacturer to ensure the value of jewelry. Solderless pure gold completely solves the problem of using solder, and consumers can buy it on the basis of solderless.

Baidu encyclopedia-thousands of gold

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