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.