Here's What Happened At Jefferies' 3D Printing Summit By: Benzinga via Benzinga March 30, 2016 at 11:38 AM EDT Jefferies 3D Printing Summit revealed continued strength in overall demand for metal 3D printing, with visibility limited for plastic ... Read More >> Related Stocks: 3D Systems Corp Boxx One Year Target Duration ETF HP Inc Materialise NV ADR Stratasys Ltd