Aluminium alloy 7005 is the line, this is a combination of aluminum and zinc (about 4.5% by weight), sometimes mixed with a variety of other materials such as silicon, magnesium, iron, copper, chromium, manganese and titanium. Stiffer aluminum alloy aluminum 7005 6061 10% but more than a little crunchy, aluminum alloy 7005, unlike 6061, it does not require heat treatment to more costly to have enough money to hard, but offset 7005 uses to increase the thickness to reinforce stiffness, which explains the use of aluminum alloy heat treated 7005 is not low cost, but the weight is increased (heavier).?
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