Common gold has thousands of gold and sufficient gold. Gold jewelry is all involved in steel printing, and the purity of gold can be distinguished according to the steel print.
Thousands of gold, which is 999 gold, and the gold content is more than 999.0 ‰, which is called a thousand foot gold. The gold is 990 gold: the gold content greater than 990.0 ‰ is called thousands of gold, the mark is "foot gold", "990 gold", "G990"
10,000 foot gold, also It is 9999 gold, 4 9. The gold content is more than 999.9 ‰, which is called 10,000 enough gold. The 10,000 -foot gold is not among the national standards. It is not recognized by the country. For thousands of gold.
Common gold has thousands of gold and sufficient gold. Gold jewelry is all involved in steel printing, and the purity of gold can be distinguished according to the steel print.
Thousands of gold, which is 999 gold, and the gold content is more than 999.0 ‰, which is called a thousand foot gold.
The gold is 990 gold: the gold content greater than 990.0 ‰ is called thousands of gold, the mark is "foot gold", "990 gold", "G990"
10,000 foot gold, also It is 9999 gold, 4 9. The gold content is more than 999.9 ‰, which is called 10,000 enough gold. The 10,000 -foot gold is not among the national standards. It is not recognized by the country. For thousands of gold.