Nerda's high-pressure, high-concentration carbonization testing machine, under conditions of setting the test environment and adjusting CO₂ concentration, temperature, humidity, and pressure, provides a reliable testing environment for research institutions studying CO₂ carbon sequestration, carbonization maintenance, and geological sequestration, as well as for industrial producers that need rapid carbonization maintenance for product manufacturing. Compared to large-scale carbonization reactors, this testing machine occupies less space, addressing the issue of insufficient laboratory space. It significantly enhances the utilization of testing space, offering researchers more flexibility and convenience, and aids in advancing scientific research and innovation.