high power green laser pointer pen for teachers Related pictures:
Our QC procedure:
As we had more than 10 professional and technical personal, they ensure 100% products checking.
1. Material checking: strictly control of material using, meet international requested standards;
2. semi-finished products inspection: product inspection before 100% finished ;
3. production line test: with work team or data engineer who will inspect matchines and lines at fixed period.
4. finished product product inspection: quality and property test before products are packed and loaded.
Payment & Shipping & Service: