At the beginning of company foundation, the products quality was put the first of company development,October,10,1999,our company passed successfully the auditing of the experts teams of Shandong Comment Center,and it obtained ISO9002 and the quality management system(producing,installing and serving quality guarantee mode certificate.Next year,It obtained the UKAS certificate,in October,2002,the company passed 2000 certificate by the efforts of the staff together,and which made the company quality management great development and progress.