Oz source for T-slot plate????

Veritas T-Slot Tracks steel t slot This cast iron block has a 'T' slot cast in the centre for use with T nuts and T bolts Stainless Steel INOX 3items · Stainless Steel INOX 316+ 3items steel t slot track Find Best Price, Quotations, Address, Contact Number, Reviews and Ratings of Verified Itm High Speed Steel T Slot Cutter Dealers, Manufacturers & Suppliers

steel t slot Everything I see online is steel Will aluminum not hold up? Thinking of making my own for my Pratt & Whitney 3C