<http://schema.org/description>
"&lt;p&gt;Trilogy Systems ran into a major manufacturing hurdle as the length of its motors increased. The linear motor body comprises a U-section made up of three precision-machined mild-steel plates into which the magnets and coil assembly for the motor are installed.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/articles/accuracy-achieved-by-milling-on-a-magnet>