Classified by alloy composition: it can be divided into 1024, 2011, 6063,6061、Alloy aluminum profiles with grades such as 6061, 6082, and 7075, among which the 6-series are the most common. The difference between different grades lies in the varying proportions of various metal components. Besides commonly used building aluminum profiles for doors and windows like the 60 series, 70 series, 80 series, 90 series, and curtain wall series, industrial aluminum profiles do not have clearly defined grades; most manufacturers process them according to the customer's actual drawings.