<http://schema.org/description>
"&lt;p&gt;In many companies, CNC machinists do not work directly from workpiece drawings because those types of drawings show only the finished workpiece.  Instead, a manufacturing engineer will create other drawings from which the shop personnel can work. &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/columns/how-helpful-are-your-process-drawings>