Established in 2017 in Lishui, Zhejiang, KRV specializes in PTFE-lined valves and pipe fittings. The company is equipped with advanced inspection equipment including ultrasonic flaw detectors, universal testing machines, spectrometers, and coordinate measuring machines (CMM), achieving a machining accuracy of 3 microns. Holding multiple patents—such as high-temperature and high-pressure bidirectional sealing butterfly valves and high-precision wear-resistant ball valves—KRV is certified under the TS Special Equipment Manufacturing License and recognized as a National High-Tech Enterprise. It also complies with ISO9001, ISO14001, and implements 6S management practices. Products are marketed domestically and exported to the United States, Europe, Africa, and the Middle East. Core offerings include PTFE-lined butterfly valves, ball valves, globe valves, gate valves, diaphragm valves, check valves, sight glasses, and stainless steel valves.