Our company has always attached great importance to quality management. As early as 1993, it established a quality management system in accordance with the requirements of the ISO9001: 2000 standard and passed the certification in 1998. It marks the further improvement of our company's quality management level and quality capability. The company does not pay attention to the construction of quality assurance system, but also pays attention to testing equipment and testing methods. We have advanced testing equipment, such as direct-reading spectrum analyzer and test pump station. Thereby, the quality management level is further improved, and the product quality is improved by the customers.