Covering multiple dedicated pre-assembly production lines for embedded machine welding leak detection lines, powder coating bonding lines, internal machine assembly, ducted air conditioning units, embedded machine panels, electronic controls, and printed products, the production line relies on a modular production model to specifically address industry pain points. The production line streamlines production processes through modular pre-assembly, improves circulation efficiency, and utilizes robotic specialized tooling for automatic assembly and automated commercial inspection. The production line supports rapid product changeover and adapts to multi-category customized production. Relying on standardized operations and a digital traceability system, it strictly controls product quality, replacing traditional manual labor with intelligent manufacturing, significantly reducing labor and production management costs.