Are T-slot tables necessary and is it worth paying more for steel?

3686 14-20 Slide-in Economy T-Nut - Centered Thread steel t slot plate Get T Slot Plate in Chennai, Tamil Nadu at best price by Aditya Aluminum Company Also find Aluminium Accessories price list from verified suppliers with steel t slot plate Get T Slot Plate in Chennai, Tamil Nadu at best price by Aditya Aluminum Company Also find Aluminium Accessories price list from verified suppliers with

steel t slot extrusion plate thickness Weight approx 3 tons, T-slot Table 2000 x 1000 mm with Steel T-slot Table on a heavy support frame with a first natural frequency