I see many Chinese hobby cnc machines using 20x40mm aluminum extrusion, but I cannot seem to find any Chinese cnc machines that use the thicker aluminum frames like CNCrouterParts.com uses.
I would much rather get a cnc machine that is made out of aluminum extrusions than the huge steel ones that weigh so much you need heavier machines to install and move around.
I am getting a container load imported into USA in about 3 to 4 weeks and though I could add a cnc machine to the load.