Sheet metal fabrication has many advantages. When we talk about volume, we can get really cheap, high-quality parts, it scales up to mass production, even the most common sheet metal best practice approach, not super high-end fancy mass production, but you'll see, by using the normal procedure that you see in stores across the country, the prices have dropped dramatically. Aluminum is an inexpensive material and the first supermaterial. It has an amazingly high strength-to-weight ratio, which is why we have such a great plane. You can use this power in your designs to create sheet metal parts. It is also affected by a large part. You can make the skin of a Boeing airplane, or you can make a small bracket.