Efficient Refrigeration | Energy-Saving Technology | Complete Solutions On April 29, 2025, Ningbo Longwell Electric Technology Co., Ltd. (LONGWELL) welcomed the final day of the 2025 China Refrigeration Exhibition (CRH) at the Shanghai New International Expo Center (Booth: W4-B47). As the annual highlight of the refrigeration industry, Longwell showcased its core theme of “Efficient Refrigeration.