Requirements of cellulose acetate for magnesium oxide indicators
Hebei Messi Biology Co., Ltd. stated that domestic cellulose acetate production mainly uses imported high-purity magnesium oxide from foreign companies, and then gradually uses high-purity magnesium oxide from magnesite in Northeast China as a substitute. In 2017, with the increase in environmental protection efforts, magnesite in Northeast China was banned from mining due to dust […]
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