The company in line with the principle of win-win cooperation with suppliers to establish a stable relationship. The company has established a more perfect supplier evaluation system, stipulate the supplier introduction, evaluation, exit, procurement process, and so on in detail, to ensure the cooperation with the supplier is open, fair and impartial. The company strictly enforces the relevant regulations of ISO9001 Quality Management System, strictly control the quality, ensure product quality, and actively communicate with customers, constantly improve the products and service standards.