1 thought on “Chinese golden invoice can't understand”

  1. When marking the gold content on the invoice, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K numbers according to the gold content. It is 75%.
    How to distinguish between pure gold and K: (transfer)
    A general gold jewelry contains other metals with less than 1%. Regarding the color content of gold products, the national standards have clear regulations, that is, each gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of the gold jewelry is all used in the national statutory unit. Pure gold is 24K, that is, the theoretical gold content is 100%, then 1K means that gold products contain pure gold 1/24, about 4.16%. 18K gold represents the gold content of 18/24, which is 75%of pure gold, and the rest are other materials such as silver or copper.

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