Sida has always focused on the quality of the products, insisted on the importance of quality, thought of quality as its life. So Sida erects a scientific quality management system. In July 2004, Sida has got certificate of the system of quality certification ISO9001:2000. 

　　 Sida erects strict quality inspection system of the buy-back product, inspects all buy-back products, weed out unqualified. Sida also inspects every product and issues the inspection report.

　　 To insure quality management system operating normally and efficiently and continuous mending , Sida erects strict quality examination system. Sida holds a quality examination meeting monthly and exams the work of quality according to the examination principles exist.

　　 Sida has carried out '5S'management pattern in production field to insure production process ordered and products quality.

　　 Sida always pays much attention to your feedback  thoughts and opinions of our products, so we settle the complain telephone:023-67463419 to settle or resolve all problems you meet rapidly. Therefore our quality of products and service always receives applause from customers.