The NELD-FA810 Concrete Slow Freezing and Thawing Test Machine is developed by Beijing Naideli Company. After long-term use by scientific research institutions and universities, the product has been confirmed to have high reliability. It provides important quality assurance for long-term performance and durability tests of concrete, and can meet the needs of concrete slow freezing tests for research institutes, colleges and universities, design, construction, and quality inspection departments in related industries.