<http://schema.org/description>
"The BK-TT Tru Temp black oxide line from Birchwood Technologies features seven 5-gallon immersion tanks, covers, headers and chemicals to operate the process for 4 to 6 months, the company says."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/products/black-oxide-line-uses-low-temperature-process>