WUXI XISHIMEI DAILY CHEMICAL CO., LTD
WUXI XISHIMEI DAILY CHEMICAL CO., LTD Patent applications | ||
Patent application number | Title | Published |
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20130068864 | METHOD FOR PRODUCING PEARL POWDER THROUGH LEVIGATION AND ROLLING PORCELAIN BALLS - The present invention involves a method for producing pearl powder through levigation and rolling porcelain balls. The method the present invention prevents metal element from mixing into the pearl powder, thus ensuring the pure naturalness and medicinal value of the pearl powder. | 03-21-2013 |