Manufacturing and sales of wooden doors, wood products, and furniture (operated with a valid wood and bamboo business and processing approval certificate). Manufacturing and sales of daily metal products, locks (except castings), metal decorative materials, hammocks, tents, beach chairs, pneumatic tools, electric tools, auto parts, motorcycle parts, metal processing machinery and accessories, and electric bicycles; sales of daily necessities (except flammable and explosive goods); import and export of goods, and import and export of technology.