1、National quality supervision spot-checks of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China;
2、Requested arbitration inspection of the national court, arbitration committee, engineering supervision, industry and commerce committee;
3、New products, scientific and technical payoffs, reaching the mark, innovation product inspection and quality investigation authorized by related department;
4、The third party supervision inspection and equipment supervisor authorized by both domestic and overseas customers;
5、 Special request examination;
6、Proposing the product quality examination method, setting out inspection plan, making and revising production standard and organizing inspection methods training.