silica gel cat litter 1 we are the factory. 2 prompt delivery time, 3 competitive price, 4 OEM available white silica gelA type silica gel(100-200g)Characteristics1)Average pore diameter: 2.0-3.0mm2)Specific surface area: 650-800m2/g3) Pore volume: 0.35-0.45ml/g4)Specific heat: 0.92KJ/Kg°c5)Thermal conductivity: 0.63KJ/m.hr.°c6)Usage: using for medicine, electronical mechine, food, leather,and ...