Shares of 3D Systems (DDD), Stratasys (SSYS) and Desktop Metal (DM) are rallying on Wednesday following a news report saying Apple (AAPL) is testing the use of 3D printers to produce the steel chassis used by some of its upcoming smartwatches. TESTING 3D PRINTER… To see the rest of the story go to thefly.com. (See Story Here):(https://www.thefly.com/permalinks/entry.php/id3772770/-D-Systems-Stratasys-jump-as-Apple-said-to-test-D-printer-use)