One example is, simple good shapes will be less difficult and a lot quicker to extrude than semi-hollow ones. They would also be cheaper—generally, the more sophisticated the shape, the tougher and expensive it to extrude. A puller retains the extrusion in position just after rising. The puller shields it https://gregoryueowe.blogvivi.com/33085688/the-basic-principles-of-aluminium-extrusion