The EASIEST and CHEAPEST way to build with aluminium extrusion

Does any one know of a shop in perth that stocks T or V slot aluminium extrusion? Something simular to this: V slot extrusion

30 Profile 4 Slot 30mm W x 30mm H Aluminum Smooth Extruded T-Slotted Bar Extruded T-Slotted Bar Fastenal Sku: 0961287

aluminium t slot Products Catalog of IBK Engineers Pvt Ltd - 080-23726644, India

aluminium v slot With over 25 years experience in almost every industry, our products are built for the Australian workplace Check out our range of T-slot Aluminium Extrusions