Dear Yasser,
I'm Mr.Samart, Assistant of Electrical Maintenance Manager. Mr. Phongthep has a long holiday. So, I'm continue handle the mention below. After they stop the line I have checked and clean all the windows. I attached relating pages for your detail. Also I found there are parts inside the lens of camera #3. I afraid to get trouble if I open the lens. So, I didn't do anything. Ater they ran the machine the trouble still appearing.
We are a waiting for your help.