Profile: Stewart Industries, Inc. engineers and manufactures special purpose machines & components. We offer machines, weld shop, tool room capability, large boring mills, CNC machines and assembly. We produce PMC label die cutting machinery, concrete surfacing machines and heat actuated safety cut-off valves. Our machining services include CNC machines, lathes, jig & horizontal boring and milling machines. Our automatic shut-off valves are used for gas and chemical lines or storage, as well as prevent fuel-fed fires, reduce injury to personnel & damage to property. Our automatic opening valve removes flammable or hazardous material away from fire, or for fire extinguishing systems using water, halon or dry chemicals.