New Type Kenyan Supplier For Mining Machine

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The existence of money as a means of buying or selling goods and services dates back to at least 3000 b.C., when the sumerians began using metal coins in place of bartering with barley.The use of paper money began in china during the seventh century, but its uncertain value, as opposed to the more universally accepted value of gold or silver coins, led to widespread inflation and state.

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