Aluminum is the most abundant metal element in the earth's crust. The density of aluminum is very small, only 2.7 g / cm, and it is malleable. It can form an oxide film to prevent metal corrosion in humid air. Aluminum can be made into a variety of shapes: rod, sheet, foil, powder, ribbon, and wire. The aluminum alloy casting has been mature in the world. Aluminum Alloy Casting For aluminum alloy ...
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