tructech announces that Mark Rayfield, CEO, Saint-Gobain North America and CertainTeed is joining the lineup of speakers at the Constructech Technology Days Conference, taking place on August 21 - 22, at the DoubleTree by Hilton Chicago - Arlington Heights, Ill.(PRWeb May 30, 2019)Read the full story at https://www.prweb.com/releases/constructech_welcomes_mark_rayfield_as_keynote_of_technology_days_conference/prweb16347770.htm
