<http://schema.org/description>
"Our company does a lot of bright nickel plating. One area that we have problems with is the barrel nickel plating of parts that have somewhat complex geometries. For example, the nickel plating on the inside of some parts becomes dark after drying."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.pfonline.com/articles/nickel-in-a-barrell>