Walnut shell is a kind of granular material which has been processed through degreased， broken， screened， etc.， with molecular sieve surface and good adsorption effect and polishing abrasive. It is a kind of natural light-rolling material， it will not damage the surface of the work pieces and achieve a good polishing， etc.

Application1. Polishing Media2. Blast Cleaning3. Polishing 4. Filters for water purification