Aluminum alloy is a commonly used conductor material for power transmission, commonly known as aluminum alloy cable; aluminum is a silver-white light metal, which is made of power cables by adding other alloying elements. Electric aluminum fairleads usually use industrial pure aluminum with an aluminum content of more than 99.5%
Special No. 1 aluminum, code name A1-00, contains more than 99.7% aluminum.
Special No. 2 aluminum, code name A1-0, contains more than 99.7% aluminum.
No. 1 aluminum, code name A1-I, more than 99.5% aluminum.