The Vulcano® series with wall thicknesses from 1.5 mm to 2.5 mm, such as: Vulcano® 15 est, Next 15 est, Vulcano® stone and Vulcano® stone plus, as well as Urano PU and Urano HD super, which, thanks to thier TPU liner, are both suitable for heavy-duty applications involving the passage of highly abrasive substances.