Have Yunnan iron walnut buyers cleaned up?

Yunnan iron walnut buyers cleaned it up. According to the relevant public information, when buying Yunnan iron walnut, choosing those merchants who provide cleaning services can greatly reduce the risk of Yunnan iron walnut with debris and dust. The cleaning of merchants usually removes excess impurities, such as residual shells, pebbles, sand and so on. To ensure the better taste and quality of iron walnut.