1. With the advantage of water absorption are made of sponge, coated with abrasive(aluminum oxide silicon carbide)2. They are widely used in various kinds of industries in wet or dry ways to polish sorts of metals, woodware, and plastics. Density of sponge: Super High Density of Sponge.High Density,...

Suitable for cleaning and removing the burr, eliminating the oxide film of metal and rusty stain. Rough grinding before agglutination of painting board and thin steel plate, processing stainless steel hairline and other polishing trace.