<http://schema.org/description>
"Machining operations such as turning, milling, drilling and grinding leave traces of contaminants behind on workpieces. Ultrasonic cleaning allows for the removal of coolant, chips, polishing  paste and other residue in a quick, reliable and economical manner."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/articles/ultrasonic-cleaning-for-large-lots-of-small-parts>