Founded in 2012 and located in Liaocheng, Shandong, with a registered capital of RMB 20 million, DOFUN specializes in the R&D and manufacturing of industrial refrigeration valves. The facility occupies over 30 mu (approx. 20,000 m²) of land, featuring more than 10,000 m² of modern workshop space and multiple advanced production lines, with an annual production capacity of approximately 300,000 units. Its sales network covers the entire domestic market and exports to over 100 countries and regions worldwide, with overseas sales accounting for about 30% and an annual growth rate of approximately 70%. The company holds 36 invention patents, and its jointly developed new alloy steel material rated for -196°C has set a new industry record. Its products have obtained CE, EAC, and other international certifications. These products are widely used in cold storage, cold chain, ice and snow venues, food and pharmaceuticals, and other fields. Its main product lines include globe valves, check valves, throttle valves, strainers, functional valves, pneumatic valves, and combination valves, providing highly reliable cryogenic control solutions.