this becomes our extra process to clean before our next process.
This is just a small problem but it is not expected to happen here so we would like you to add more process or find some ways to make sure that the products are cleen enough before packing and sending out to us.
We also want to know your action in report. It would be great if you could finish it very soon. We hope you can seek a good way to solve the problem.
I have to say so sorry about this one more time.