Polyetherimide (PEI) Market Size Worth Around US $845.2 million by 2026: Acumen Research and Consulting LOS ANGELES, April 03, 2019 (GLOBE NEWSWIRE) -- The global polyetherimide (PEI) market size is anticipated to around USD 845.2 million by 2026, this market is anticipated to grow with 5.3% CAGR...