Classification of industrial helmets specialized for head protection in manufacturing sites. Handles protective equipment that protects workers' heads from falling objects and impacts during machinery operations, welding work, assembly work, and inspection work in factories. Includes general work helmets made of ABS resin and polyethylene, as well as special-purpose products with electrical insulation, heat resistance, and chemical resistance. Focuses on nationally certified products for flying and falling objects and fall protection, and JIS standard compliant products, limited to head protection equipment that meets manufacturing industry safety management standards.