Engelberth Construction recently completed the latest expansion of GW Plastics, Inc.‘s Royalton, Vt., manufacturing and technology center. The expanded space includes a new 13,000 sf, Class 8 cleanroom and 17,000 sf of warehouse space. This equips GW Plastics for the continued growth of their manufacturing of thermoplastic injection molding and medical devices. Construction for the 30,000 sf facility began in April 2019.