1. Kieselguhr powder for swimming pool filtration 2. Abundant pore 3. A large number of ... 1 micron particle and bacteria. For example the usage of pool filtration Our advantages1. Our purify way: International advanced technology ... , Cement, Paper, Grinding, Ceramics, Glass, Steel, Decorative Material, Detergent, pool filtration; Carrier Material for Catalyst, Pesticide, Fertilizer; Used to Heat ...