<http://schema.org/description>
"Specks are a common problem in extrusion, and avoiding them requires a two-pronged approach: First, figure out how many specks are in the incoming raw material; then minimize those caused during the extrusion process."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ptonline.com/articles/extrusion-without-discolored-specks>