This is actually a gimmick of some merchants. When you sell second -hand gold, you will be calculated according to the three nine golden gold. So even 9999 gold bought at high prices is completely meaningless when recycling. Think about the purity of 0.09%of the purity of 0.09%. In fact, it does not make much sense. The purity of the three nine represents gold is 99.9%, and the purity of the four nine represents gold is 99.99%. Usually, the purity of 99.9%of the gold is called thousands of gold. The purity of 10,000 -footed gold is higher, and the price is relatively high. Most gold jewelry is thousands of gold, and the BRICS is mostly performer.
There are also four people in four people. There are many Hong Kong and Macau, and the mainland is basically three nine.
Because the purity cannot be mentioned too high, basically 39 are circulating on the market.
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