The registration address of dong-eun seal materials ltd. Is located in room no. 103, mangang road, wangang street, dong-eung province, with the registration authority being the market supervision authority of dong-eung city, represented by wang fu-ying and operating in the areas of research and development, production, processing and sale of seals, biomass materials, glues, glues, electronic supplements, labour security supplies, office supplies, hardware tools, hardware, plastics, general machinery equipment, decorative materials; sales of rubber products, lubricants; wholesale and retail: printing; wholesale and retail trades; import and export of goods or technology (with the exception of goods and technology that are prohibited by the state or involve administrative approval). (projects subject to legal approval to operate with the approval of the relevant department)