... P400Fixed onto pneumatic or ectrical tools to grid, polishing for ship, automobile, furniture, aviation, machinery, building, instrument, metal ... wheelFlap DiscP36∼P400Fixed onto hand tools to grid. Ideal for ship, automobile, machinery, light industry, furniture, electrical household appliance, ... Sanding BlockSponge Sanding BlockP30∼P220Grinding and polishing for automobile, wood machinery, kitchen.