5 thoughts on “The gold bracelet brought back from Hong Kong by a friend is from Chow Tai Fook. It is printed CTF 999.9h. What does it mean? Isn't qianzujin 999au?”
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CTF is the abbreviation of Chow Tai took, 999.9 refers to the gold content, and H refers to Hong Kong. In China, CTF gold is the standard, not 999au, only 18K gold standard au750
the mark is thousand gold, 999 gold, gold999 or g999. The marks of gold jewelry include manufacturer code, material and purity, such as: X gold 990, xau990, X full gold, etc
Where, the letter X is the manufacturer code. When precious metals of different materials or purity are used to make jewelry, the material and purity shall be expressed separately. When the jewelry cannot be printed due to reasons such as too fine or too small, it shall be attached with a mark containing the imprint content
on the eve of the Spring Festival in 2015, the National Standardization Administration announced the No. 1 amendment to gb11887-2012 regulations on the purity and nomenclature of precious metals in jewelry, which was implemented on May 4, 2016. In the future, even gold jewelry with a purity of 999.0 ‰ can only be labeled as "full gold", instead of "thousands of full gold" as it is now
extended data
precautions for wearing:
1. Although the durability of gold is high, if you don't know how to cherish the fragrance and cherish the jade, the surface of gold jewelry will still produce scratches or pits, especially for jewelry such as rings and bracelets. So remember to get rid of the gold jewelry before carrying out strong activities
2. Pay attention to chemical products. The natural enemy of gold is chlorine. Repeated exposure to chlorine will weaken the internal structure of gold and eventually lead to fracture. So keep your gold jewelry away from chlorinated cleaners, swimming pools and bathtubs
3. The acid, abrasive and other chemical components contained in household cleaning solution will damage the luster of the gold jewelry surface, so remember to wear rubber gloves when carrying out heavy cleaning work, and of course, it is best to remove them
4. Gold jewelry is easy to lose its original luster due to long-term pollution by sweat, dust and cosmetics such as perfume, so it should be cleaned regularly. You can use mild soapy water to wash, or go to a professional jewelry store for steam washing. After cleaning and rinsing, be sure to wipe with a piece of suede or clean soft cloth to avoid scratching
5. Proper storage is as important as cleaning. When not wearing, put them carefully in the jewelry box - a soft cloth is better - all kinds of jewelry are best stored separately to avoid entanglement or friction
6. Check whether the gold jewelry is cracked or damaged at any time, especially the clasp is flexible and safe; Claws - avoid breaking, bending or loosening to prevent gems from falling off; Earrings and pin backs - avoid bending or loosening, as well as the connection of wedding rings, pendants and other long-term hanging accessories
reference source: Baidu Encyclopedia - qianzujin
999.9 is ten thousand gold. In the mainland, it is not allowed to play four nines. Hong Kong can. H means Hong Kong. CTF is the mark of Chow Tai Fook, just like the butterfly mark on the ring arm in the inseparable series of inor diamonds.
Because Hong Kong allows Four nines, but the mainland stipulates that gold jewelry with interfaces cannot be marked with four nines, so the mainland's Chow Tai Fook gold jewelry is three nines ~ ~ Hong Kong's four nines~
"H" means "Hong Kong", which means "Hong Kong". CTF is the trademark of Chow Tai Fook. Hong Kong is allowed to play "ten thousand gold" and the mainland is not allowed to play it
C = Zhou
t = Da
F = Fu
a thousand feet is 999.9