Licensed Projects:Production of Class II medical devices, Production of Class III medical devices, Class III medical device operation, Medical mask production, Import and export of goods, Technology import and export, Import and export agent( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments, The specific business items are subject to the approval results.) General Projects: mold manufacturing, Metal cutting services, Metal surface treatment and heat treatment processing, Electroplating, Spraying processing, Mechanical parts、 Parts processing, Machinery and equipment sales, Mechanical parts、 Parts Sales, Machinery and equipment rental, Mechanical equipment research and development, Class I medical device production, Metal product sales, mold sales, Sales of Class I medical devices, Sales of Class II medical devices, Domestic trade agent, Medical mask retail, Medical Mask Wholesale, Metal tool manufacturing, Metal material sales, Quenching( Except for projects that require approval according to law, Carry out business activities independently in accordance with the law with a business license)