Technology development, design, production and sales of LED energy-saving lighting products, transformers and ballasts; Production and sales of hardware products, electrical equipment, plastic products, clothing, shoes and hats; Metal rolling (excluding surface treatment); Sales of metal materials (excluding calcium carbide and ferroalloy); Self-operated and agent import and export of commodities and technologies. (For projects subject to approval according to law, business activities can only be carried out after approval by relevant departments)