Founded in 1996 and located in Jiaozuo, Henan, JAF specializes in the R&D and manufacturing of ammonia stop valves and lift check valves, holding a Special Equipment Manufacturing License. Its products feature compact size, light weight, excellent sealing performance, and high pressure ratings, making them easy to install and maintain. The company serves as a core supplier of ammonia (and refrigerant) valves for refrigeration engineering applications. Its products are widely used in chemical, food, water conservancy, power stations, petroleum, brewing, pharmaceutical, coal, marine, and other industries. Its main product lines include ammonia stop valves, refrigerant stop valves, throttle valves, check valves, strainers, and plate-type level gauges.