The registration address of the city of sin sein is in room 319-1 a, south road, no sing wu city, no sing city. The registration authority is the administrative approval board of the new technology development zone (sing wu zone, no sing city) of the tin-free state. The legal entity is represented by kang xuyong and operates in the areas of metal materials and products, stainless steel, steel pipes, non-ferrous metals, construction materials, hardware products, instrumentation forms, chemical products and raw materials (non-hazardous products), general machinery and accessories; the import and export of self-employed and proxy goods and technologies (except for goods and technologies operated by state-restricted companies or prohibited from import and export). (projects subject to legal approval may not operate without the approval of the relevant department)