The registration address of swords and lubricular technologies ltd. In dongcheng city is located in building 305, no. 181, no. 2, tsayama super-travel road, dongcheng city, guangdong province. The registration authority is the market supervision authority of dongcheng city, represented by a legal person, huang weng, operating in the areas of research and development, processing and marketing: lubricating oil, lubricating grease, lubricating materials (without dangerous chemicals). (projects subject to legal approval are not allowed to operate without the approval of the relevant authorities) i'm not sure