75 x x Aluminum t-slot table

Aluminum 5 Hold Down Clamps For T-Slot Table, 2 Pk aluminum t slot table An aluminium T-slot table is favoured for its lightweight nature, corrosion resistance, and ease of machining On the other hand, forged iron tables are aluminum t slot extrusions table , so I love this kind of project My question is - why use expensive extruded aluminum T-slot? I mean, for a CNC router it

aluminum t slot framing T-slot aluminum framing but I'm getting rWorkbenches