... products of types. Item: Precipitated Silica(Used in Toothpaste) The toothpaste of SIL500 use dioxide silicon to have no already ... the water or sour, become the chemistry sloth, with toothpaste in fluoride and other raw materialses dissolve mutually good, the structure ... takes into the control, aiming at the category of the toothpaste dissimilarity, produce respectively:Rub type, Mix type and Increase ...