Hi Tsering,
I'm sorry. The photo which send to you was the best that we have for next time we will give the high definition more than now. We assembly normally because the mark are very small.
For next we will try to take picture with high definition (good Camera + Marco lens).
Now, We assembly furck lot# 190315A1 18 white found little mork on skin not too much about 2-3 pieces per 500 pieces.