https://mma.prnewswire.com/media/460092/Daikin_Applied_Logo.jpg?p=captionHARMONY, Pa., April 13, 2018 /PRNewswire/ — Steamfitters Local 449 and the United Association host HVAC-R Expo at the newly opened Steamfitters Technology Center outside of Pittsburgh, April 13-14. The event aims to bring together tradespeople with more than 60 companies from the…