The surface of high-quality aluminum alloy plate is smooth without scratch and oil stain, and the color is even without color difference. Now, the production equipment of aluminum alloy plate has realized automation, all of which are processed on the assembly line, after oil removal and decontamination treatment, so the surface of high-quality aluminum alloy plate is better.

Size measurement: prepare the coil and micrometer to measure the thickness, length, width and diagonal of the aluminum plate, and compare the actual measured data with the national standard. The size tolerance of high-quality aluminum alloy plate is small and the thickness is uniform.