... approval. Description:This is filler master batch, by added to plastic products production, including blown, cast, and extrude process, ... that is concerned with the development, production and sales of plastic Moisture Absorbent masterbatches, black masterbatches, white masterbatches, CACO3 Filler ... interest, please feel free to contact us.Thank you! Plastic CaCO3 filler masterbatch for shopping bags