At present, the company has over 100 specifications in about 20 series, including Fine-pored, Macro-pored, Type B, cat litter, Silica gel indicators, small sachets desiccant, Silica gel for column-layer Chromatography, as well as other kinds.(Please see our website : www.silicagelchina.com for more details ) So please be assurance that we can supply you the first grade production. At same time , we are constantly researching and developing new silica gel products to meet our clients' needing