Are the compositions of recycled aluminum and virgin aluminum mixed cast rods the same?

Not the same.

Because the compositions of recycled aluminum and mixed aluminum are different. Recycled aluminum refers to aluminum alloy; primary aluminum is made from mined aluminum ore, so the compositions of recycled aluminum and primary aluminum mixed cast rods are different.

Recycled aluminum refers to metal aluminum that has been cast or processed at least once and recovered and processed; primary aluminum is aluminum ore obtained by mining aluminum ores, and pure aluminum is extracted through electrolytic cells and has no After secondary processing.