<http://schema.org/description>
"Fireside Chimney Supply's FireFlex chimney lining systems are made of 316Ti stainless steel and are used for all fuels. However, we recommend using Heavy Wall Liners for both coal and corn..."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.firesidechimneysupply.com/flexible-chimney-liner-kits/fireflex-316ti-basic-flexible-chimney-liner-kit.html>