YUNKONG is located in Lishui, Zhejiang, specializing in the research and manufacturing of intelligent valves. Our products strictly comply with ANSI/ASME, ISO, GB, JIS, DIN, BS and other standards, and are widely used in fields such as petroleum, natural gas, chemical, power plants, metallurgy, national defense, pharmaceuticals, and long-distance pipelines. Our main products include ball valves, butterfly valves, fixed ball valves, globe valves, oxygen valves, gate valves, check valves, Y-shaped filters, electric valves, pneumatic valves, and other series.