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Composition: microcrystalline cellulose, silicon dioxide, sodium carboxymethyl starch, sodium stearate fumarate, average particle size 130 meters, pile density 0.30-0.42g/ml, namely, auxiliary materials. It is especially suitable for rough, illiquid and fluffy active ingredients. It is suitable for high speed tablet press, with small difference in weight, good uniformity in content, no over lubrication, and higher production efficiency.