Not sure the material, but check out the price
http://www.ducatitifoso.com/index.php?route=product/category&path=65_75 (http://www.ducatitifoso.com/index.php?route=product/category&path=65_75)
Looks like a CA-Cycleworks Track tank knock-off, or possibly just an unattributed sale.
Hi there guys,
That is one of our tanks. The guy selling it is becoming a dealer with us :) Price is 689 USD if you translate from Euros.