<http://schema.org/description>
"We send our 6061 aluminum bars to an outside anodizer for Type II anodize and black dye. These parts have several very small diameter, blind holes, both threaded and non-threaded. When we get these parts back from the anodizer, the tapped holes will have bleed-out areas of white streaks, and sometimes the holes are filled with a white powder."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/dying-anodized-parts-with-small-holes>