Among the Dow Jones Industrial Average's 30 time-tested components, there are three that stand out as phenomenal buys right now.For the last 128 years, the iconic Dow Jones Industrial Average (^DJI 1.09%) has served as the premier health barometer for Wall Street. What began as a 12-stock index that primarily contained industrial companies has transformed into a 30-component index comprised of time-tested, multinational businesses that have consistently delivered for investors over the long run.While most D ...