wholesale steampunk jewelry supplies What does Chow Tai Fook CTF Foot Gold LJ mean?

wholesale portable jewelry showcase displays CTF is the English abbreviation of Chow Tai Fook. Foot gold: The amount of gold content is not less than 990, so it can be called foot gold, so CTF foot gold is a foot gold sold by Chow Tai Fook.
The gold content is not less than 999, which is called thousands of gold. It is the highest value of jewelry named names.
The mark of gold jewelry includes manufacturers' code, materials and purity, such as: X Gold 990, XAU990, X -foot gold, etc.
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The golden content of jewelry is an important indicator for measuring the quality of jewelry. There are many methods for measuring gold content, which can be divided into chemical analysis methods and instrument analysis methods. Depending on whether the jewelry is damaged during the testing process, it can be divided into non -destructive testing and destructive testing.
In daily inspection of the jewelry quality supervision department, it is generally based on non -destructive testing. The density method is analyzed by large instruments such as X -ray fluorescent spectrum and electronic probes.
For a long time, welding has been used for the production of gold jewelry. The use of felting welding has caused insufficient gold content in jewelry, and also saves costs for manufacturers. The amount of tin melting directly determines the overall purity and value of the purchased jewelry.
In to ensure the value of the jewelry, please choose a regular gold jewelry manufacturer. Weldless gold completely solves the problem of using solder. Consumers can buy products based on welding -free money.