Have you ever wondered why smartphones are becoming increasingly thinner? Driven by user convenience and portability, devices are shrinking while still retaining the functionality of previous generations, or even upgrading it, all while becoming lighter and slimmer. The key behind this lies in CNC (Computer Numerical Control) machine technology, which plays a central role in consumer electronics manufacturing. The consumer electronics industry encompasses smartphones, laptops, wearable devices (such as smartwatches), and various household appliances. These products demand extremely high standards for aesthetic design, structural precision, and functional performance. CNC technology is primarily applied in precision component machining, casing production, thermal management components, and customized designs.