Editor?s note: Chris Rauwendaal is a designer, consultant, and seminar instructor who has written extensively on process engineering and extrusion topics. Part 1 of this article (PM&A Nov./Dec. 2002) ...
This can cause serious problems, or no problem at all, if the product is black and surface blemishes don't matter in its application. For the rest, the result may be undesirable streaks or just bits ...
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