① Aluminum: Aluminum is a chemically active metal, silver white in color, widely present in nature, and of light weight（ ρ= 2.7g/cm ³）， Both thermal conductivity and conductivity are very good. Pure aluminum is very soft and has good plasticity. It can be processed into various materials such as aluminum plates, aluminum materials, and aluminum rods.
② Aluminum plate: Aluminum plate is a plate made of aluminum, which can be divided into pure aluminum plate, alloy aluminum plate, composite aluminum plate, and aluminum clad aluminum plate according to the alloy composition. It can also be divided into conventional plate, medium thick plate, thick plate, and thin plate according to size. Generally speaking, aluminum plate refers to pure aluminum plate, which is a 1-series.
③ Aluminum alloy plate: Aluminum alloy plate is an aluminum profile made from aluminum as the main raw material, with the addition of copper, magnesium, zinc and other metals. According to the alloy composition, aluminum alloy plates can be divided into 2-7 series