<http://schema.org/description>
"&lt;p&gt;This article explores a variety of factors affecting machinability of grey and ductile irons. Choosing the right combination of metal and cutting tools can have a dramatic impact on the cost of a part.&lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/a-look-at-today39s-cast-iron>