1 thought on “Digital code in Chinese gold and platinum rings”

  1. The number code is 900, 950, and 990.
    This of platinum is marked with PT, including PT900, PT950, and PT990 specifications. 900, 950, and 990s represent platinum content. For example, PT900 refers to platinum material, and the platinum content is ≥900 ‰. In the same way, the PT950 is the platinum content ≥950 ‰, and the PT990 platinum content is ≥990 ‰.
    The inner wall of the gold ring is usually engraved with foot gold 999, G18K, AU750, G750 and other signs. Time foot gold at 999 refers to foot gold, G18K, AU750, G750 is 18K gold, and the gold content is 75 %.

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