This is my first post and I want to say I love this forum. I'm new to this business (not new to laser engraving) and this forum really helps. I have some parts that have a MILL-A-63576 coating that need to be engraved. I want to know if anybody has worked with this type of coating in the past. I know it is a type of anodized aluminum with a low friction coating, but I want to know if I need to make any special adjustments. I don't have any samples to test on so my first run needs to be spot on.