CNC refers to a subtractive manufacturing process that utilizes computerized controls to operate and manipulate machine and cutting tools. In the “Deep Processing” of aluminum, CNC technology translates a digital CAD (Computer-Aided Design) model into G-code, a numeric language that governs the precise movement of the tools. This automation allows for the execution of complex milling, drilling, and slotting on extruded profiles with a level of accuracy (often within ±0.01mm) that manual intervention cannot achieve.