Research and development of high-voltage electrostatic spraying equipment production technology; manufacturing, processing, and sales of electronic components for televisions, motorcycles, automobiles, negative ion air purifiers (lamps), spraying equipment, and high-voltage electrostatic spray gun accessories; sales of wires and cables; self-operated and agent import and export business of various commodities and technologies (except for commodities and technologies that are restricted by the state or prohibited from being imported and exported). (Projects that require approval according to law can only carry out business activities with the approval of relevant departments)