... density felt, is cut by mechanical stamping mill, made of various shape felt bob. 2. Felt bob have ... ordering items, according to the needs of polished subject, select moderate density of felt bob. 3. Used in ... , outer, Corner, groove, arc, cone angle of the inner wall of the mill special mold polishing, nylon, stainless steel ... carving, jade carving, ceramic arts, etc. grinding head of wool felt