Silica gel for packing in differents field;instruments and gauges, electronical products, leathers, shoes, foodstuffs, medicine. Silica Gel packing: 1g, 2g, 3g, ... for beer industry C. Silica gel used for preparation, analysis, medical and food additive purpose Silica gel for thin-layer chromatography Silica ... acid Silica-gel-drying tablet silica gel used for drying and moistureproof in packing