CNC machining (computer numerical control) is a manufacturing process that uses CNC equipment (machining centers, lathes, milling machines, etc.) to cut metal or plastic blanks, removing excess material to obtain high‑precision, complex geometric parts. Its core characteristics are high accuracy (down to micron level), suitability for complex surfaces, and wide material compatibility. Typical products include precision shafts, housings, brackets, and custom components. CNC machining is an indispensable foundational process in modern manufacturing, used across the full cycle from R&D prototyping to volume production.

Sheet metal fabrication is a manufacturing technology that processes metal sheets (typically 0.5mm‑20mm thick) through cutting, punching, bending, welding, and surface finishing to form desired shapes. Its core characteristics are fast forming, light weight, and relatively low cost. Typical products include cabinets, enclosures, frames, and protective covers. Sheet metal fabrication complements CNC machining – the former excels at structural forming and protection, while the latter specializes in precision cutting and complex features.