The use of exotic metals: Part of that weight saving programme influenced the abundance of aluminium and magnesium found across the car. (evo.co.uk)
We generally, but don't always, exclude exotic metal. (automobilemag.com)
Globally declining grades and quality, combined with a sustained increase in price for these important steel - making exotic metals are assisting Neometals to build a business case to develop the deposit. (businessnews.com.au)