Quality Assurance: The company has a sound production process, advanced mechanical processing equipment, production planning with the order production model, the inventory of products strictly controlled. The company has all kinds of imported testing equipment, strictly implement the "three inspection" system (IQC, IPQC, OQC) , at the same time in accordance with ISO9001 quality management system for total quality management company to establish a sound customer complaint processing process and system, can use a variety of statistical techniques to effectively analyze the causes of bad and timely formulate corrective and preventive measures to ensure that the shortest time to find problems and formulate re-occurrence measures, so as to achieve maximum customer satisfaction.