1, ionic gold is actually a layer of gold plating. When the gold-plated bracelet is worn to a certain extent, it will reveal the color of the metal itself, that is, it will fade.
The gold content of 2.22k ion evaporated gold is 9 1.67%, which can be used for high-purity gold necklaces and jewelry. 22k ion evaporation of gold has high market value and collection value.
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How time flies! It will be the end of the year in a blink of an eye. Looking back 20 12 years, there are succe