2. Diversified professional companies. The company has a factory building of more than 4,000 square meters, more than 500 employees, and produces more than 6,543,800 pieces of finished products annually. The company has a series of advanced production equipment and testing instruments, including development department, molding department, polishing department, quality control department (including IQC, IPQC, FQC, QA), assembly department and other functional departments. Is an enterprise with independent development and mass production capacity.