Welding up free T-slot extrusion instead of bolting together a frame?

T-Slot Aluminium Extrusion - 30x30mm PG30 Profile aluminum extrusion t slot Product Description Aluminum extruded bar for structural framing systems Price is $ per inch Need more than 8 feet? Please contact us to order aluminum t slot channel Home · 15QE1515 – ″ x ″ Smooth Heavy T-Slotted Aluminum Extrusion $

aluminum slot T-slot aluminium extrusion · Profile：80x80 Weight:m Surface treatment: anodized , has a · Profile：80x80 Weight:m Unified T-slot, adapt to