1. How to find the sampling quantity during the inspection?
According to the order quantity, we fix the sampling quantity for the inspection. For example: order one container(4200pcs), according to the sampling size standard, we will select 80pcs for the first inspection.
2. How to do the second inspection?
If the quality of the first inspection is not approval, the factory will fix the quality problem. after that we will do the second inspection according to customer offer, the cost will be same as the first.
3.How to increase the inspection level?
If the lot was not approval for three times, we will inspect stricter, increasing the sampling size levels, and keep this levels for three lots,if all is ok, we will turn back the normal.