According to the production scale of our company and technical requirements,establish QC department with especial inspectors for each procedure and has a developed QC system to control the qualification ratio all the time..

The products are standardized as international standards, industrial standards and requirements stipulated in the contract and SHIZHAN will fulfill its duties for the items which are caused by not good materials or improper production.

Your inquiries or comments are very valuable for us, if there is, please contact us freely and we will try to satisfy you 100%