Quality control plays a crucial role in the process of aluminum extrusion and the use of aluminum. The main task of quality control is to ensure that the dimensions, tolerances, and appearance of the profiles comply with the established quality standards. Control involves the use of precise measuring instruments, visual inspection, and testing of the material's mechanical properties. The first chapter describes the production process of aluminum extrusion. The process begins with the procurement of raw materials, followed by the aluminum alloys entering the extrusion process. During the extrusion process, the aluminum alloys are heated and then forced through tools of different dimensions. The aluminum takes on the shape of the tools, followed by cooling, stretching, and cutting to size. Afterward, the tool enters the aging furnace, and after a certain time at a specific temperature, packaging and delivery to aluminum customers ensue. The second chapter describes aluminum alloys that are alloyed with different chemical elements, resulting in different mechanical properties. Afterward, the advantages and disadvantages of aluminum are described, along with its wide application in today's industries. The third chapter outlines the quality control process, which starts with checking the chemical composition of the aluminum alloys. This is followed by dimensional and visual control throughout the entire extrusion process using numerous measuring instruments. After the aging process of the aluminum profile, profile control is performed using a caliper and hardness tester, yielding results such as profile hardness, yield strength, and profile strength. After all the mentioned controls, packaging and shipment of the profiles from the production facility follow.