This part specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage of powder electrostatic sprayed aluminum alloy building profiles. This part applies to the aluminum alloy hot-extruded profiles (referred to as powder-sprayed profiles) coated with thermosetting saturated polyester powder for the construction industry. Aluminum alloy hot-extruded pipes with the same purpose and surface treatment can also refer to this part. Aluminum alloy hot-extruded profiles with the same surface treatment method used in other industries can also refer to this part.