The gold purchased by Zhou Dafu was collected to Zhou Dafu. The weekly purchase of the finished product, each gram has processing costs. For example, if the price of the silver is 280 on the day, adding the work expenses is 10 yuan and one gram. If you buy his product, it is 290, but if you sell it, it is based on the gold price of the day. If the price of the gold price rises to 290 For a long time, buying jewelry is not suitable for investing. You can buy gold or gold bars. The labor consumption of gold bars is lower than jewelry.
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