Aluminum Grades. Depending on alloying elements and heat treatment, aluminum grades can exhibit a wide variety of properties, from good appearance, ease of fabrication, good corrosion resistance, to high strength-to-weight ratio, good weldability and high fracture toughness.
The symbol of the Black Sun is purported to unite the three most important symbols of Nazi ideology-the sun wheel, the swastika and the stylized victory rune. and that it is symbolic in its form representing the twelve SS Knights of The Order of the Death's Head and their three retainers .or other uses, see Black Sun (disambiguation) . A depiction of the Black Sun the design of which is based primarily on the shape of the Wewelsburg sunwheel mosaic in the Obergruppenfuehrer-ObergruppenfÃ¼hrer (HALL Ss' Generals). hall
Since its adoption by the Nazi Party of Adolf Hitler, the swastika has been associated with Nazism, fascism, racism in its (white supremacy) form, the Axis powers in World War II, and the Holocaust in much of the West. The swastika remains a core symbol of Neo-Nazi groups, and is used regularly by activist groups.he genesis of the swastika symbol is often treated in conjunction with cross symbols in general, such as the sun cross of pagan Bronze Age religion. Beyond its certain presence in the  proto-writing  symbol systems emerging in the Neolithic, nothing certain is known about the symbol's origin.