The registration address of the south tun tung-tung mechanism ltd. Is at no. 58, xiaokang road, dong chen town, chang-tung city, with the registration authority, such as the city administrative approval board, represented by the legal person zhong koen, and operates in the production, processing and sale of machinery, hydraulic machinery, ship mechanics, fibre-optic cable machinery and accessories; the processing, sale of hardware accessories; and the sale of steel. Import and export of products and technologies produced by the enterprise (except goods and technologies for which the state limits the operation of companies or prohibits their import and export)。