This equipment is integrated with a complementary exhaust gas environmental treatment system. Through a precisely controlled chemical circulation process, it selectively etches away excess copper from the substrate surface to define high-precision circuit patterns. Featuring fully closed-loop parameter management, it balances the etching accuracy required for rigid PCBs with the flexible protection needed for FPC materials, reliably ensuring trace width tolerance compliance and pattern integrity. Equipped with clean exhaust emission treatment, it conforms to environmental protection and safe production standards, serving as the core, fully integrated line equipment for circuit pattern formation.