... silicon rubber, plastic, painting and medicine. Precipitated Silica (amorphous powder and granule,silicon dioxide)We provides ... excellent silica for rubber, tyre, papermaking.Precipitated Silica (amorphous powder and granule , silicon ... bag, EVA/woven bag, kraft paper bag Prepitated Silica TypePackage KG/BagAppearanceBET specific m2/gPHOil absorption cm3/gSiO2 ...