actuators, air compressors, environmental control systems, meteorological or environmental instruments or systems, power supplies, radiator valves or fittings, relays, smoke detectors, transducers, transformers, control valves, electric valves, radiator valves, time controls, air dryers available from l.w. straw & co., inc. based in johnstown, pa. click the links below to visit our website or contact us via our profile page.