<http://schema.org/description>
"Wood-plastic composites, or WPCs, are already a 1.3-billion-lb market and are growing at 20% annually."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.ptonline.com/articles/wood-filled-plastics-they-need-the-right-additives-for-strength-good-looks-and-long-life>