Here in Northern Ireland, we have something of a centre of excellence for carbon technology. I managed to get a visit to it a few months ago, and one machine stood out above all others...a weaving loom (much like an old fashioned cotton loom) fed by 1000 bobbins of carbon fibre (and any other fibre of choice). This could weave intricate extrusions such as T-sections or box sections as a continuous piece...once baked, the finished article has no joins. Very impressive. Apparently a large US manufacturer from the north west was interested in the technology...their potential consumption of extruded carbon was apparently heading towards 5km per day! Not sure if that figure is reliable, and it was based on future projections, but you can see how this material is going to become the norm.