Archetech. It was an entire discipline unto itself. Originally developed by the arche race of the Red Ocean as extensions of their remarkable 'turtle shells', archemetal and archetech possessed many revolutionary properties!
It was a much more robust and resilient way of shaping technological products. The same device made with conventional technology was much more fragile and vulnerable to external attacks than if it was made with archetech.
Archetech introduced a brand-new branch of architecture that enabled any machine to do its job while taking significantly less space. Any mech designer who mastered this alien tech could cram in a lot more functions and other goodies in a mech without exceeding its capacity.
It also had the capacity to produce unprecedentedly powerful compound effects by the simple virtue of blending a huge amount of exotics together.