It's okay. AOO aluminum is a kind of high-purity aluminum, and aluminum generally appears in the non-ferrous metal market and futures market in the form of AOO aluminum ingot.
AOO stands for the composition of aluminum ingot, which requires high aluminum content. Specific indicators are as follows:
Al ≥99.70: Fe ≤0. 16%, Si ≤0. 13%, Cu ≤0.0 10%, and the total impurity is 0.3%.