The registration address of grand duy electronics technology ltd. In the city of toungzhou is located in building 101, no. 33 of the sanjiang industrial zone, tung shuang city, guangdong province. The registration authority is the market supervision authority of dong shuang city, represented by a legal person in lin jinzhou. The activities include research and development, marketing and distribution: electronics, hardware equipment and accessories, photovoltaics, optical solid products, moulds, optical sensors, security lights, close to switches, photovoltaic sensors, visual detection equipment, heavy equipment, scanners, detonators; import and export of goods or technology (except for goods and technologies which are prohibited by the state or involve administrative approval). (projects subject to legal approval may not operate without the approval of the relevant department)