StcValve�® specializes in developing and distributing high quality solenoid valves, stainless steel fittings, air valves, process valves, air pressure regulators, air cylinders and push in fittings at excellent prices. STC is headquartered in the USA, and has ISO certified design and manufacturing partner and a network of quality suppliers in China. With the design technology, engineering and quality management from the USA, coupled with advanced manufacturing technology and efficiency from China, STC is well positioned to deliver products with advanced design, precision engineered, and fine quality at excellent prices. STC also is equipped to provide custom made products with the most stringent requirements in quality, pricings, supports and services.