YUANYAO VALVE (MASTERLOK) was founded in 2007 and is located in Shaoxing, Zhejiang. We specialize in valves, fittings, and fluid control parts, which are used in various fields such as semiconductors, medical, chemical, petroleum, natural gas, thermal power, nuclear power, papermaking, industrial gases, food, and aerospace. The factory covers an area of 10000 square meters, including a 500 square meter Class 1000 clean room, equipped with machining centers, coordinate measuring machines, spectrometers and other equipment, and has passed ISO9001 and TS certification. Our main products include connectors, valves, valve groups, pressure gauges, bends, filters, sampling steel cylinders, and seamless stainless steel.