”We are aware there are minor imperfections with the laser engraving. We are currently looking to improve the quality of the panels, but to the date, our quality department will approve a product for sale above a 98% accuracy print. Unfortunately in your case the blemishes were on a visible part of the panel, we are very sorry, but there is nothing we can do about this due to the imperfections of our laser engraving equipment.
We have tolerance for this small kind of error because we prefer to put our efforts in to the set-up of the electronic equipment and functions of the modules. ”