Aluminium alloy 6061 is the line, this is a combination of aluminum and magnesium (about 1% by weight) and silicon (0.5% by weight), sometimes mixed with a variety of other materials such as iron, copper, chromium, zinc, manganese and titanium. Alloy 6061 is a powerful, robust, easy to weld, often are used as frame (rib), bicycles (as well as aircraft, boats and many more categories.)?
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