Below is a list of Aluminum Channels manufacturers from Downey, California. An aluminum channel is an extruded aluminum product that is lightweight, has a high strength-to-weight ratio and is cost effective. Although aluminum is the third most abundant element on Earth, it is one of the most recent metals to be used in industrial manufacturing processes with just over a hundred years of usage in industrial and commercial applications. This is because the process of extracting aluminum ore from the Earth's surface is relatively costly; however, aluminum-formed channels offer many advantages such as a far longer service life than most metal channels and the ability to be fully recycled while retaining 100% of the material's original properties.