<http://schema.org/description>
"A new mixing head features a patented servo-driven ceramic valve system that is said to simplify metering and dispensing of two-component reactive materials such as PUR, silicone, or epoxy by reducing downtime for cleaning and maintenance."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ptonline.com/products/servo-driven-mixhead-uses-ceramic-valves>