The legal entity is the yang fook army, which operates on the basis of technical development, promotion and technical services of chemical products; wholesale, retail (without warehousing): chemical products (excluding dangerous chemicals and vulnerable chemicals), spices, colours, detergents, detergents, cleaning materials, food additives, fodder additives, sewage treatments, fertilizers, japanese articles, gold products, electronics, rubber products, plastics, glass products, ceramics, metal products, wood products, construction materials, cosmetics, waterproofing materials, printed materials, anti-conservation materials, pressure containers, electrical equipment, instrumentation forms, medical equipment, lubricants, electric cables, fire protection equipment, vehicle accessories, electrical equipment (except hazardous products in the above range) and other projects that are not subject to the law, regulations and other decisions of the council of state. (projects subject to legal approval may not operate without the approval of the relevant department)