Dyke Industries, Inc. is a recognized member of Intertek's Certified Machiner Program, allowing them to modify Intertek Certified Fire Doors and Frames as detailed within the applicable Intertek specification listings Dyke Industries, Inc.’s site at 1920 Nolensville Pike, Nashville, TN 37211, is subject to routine inspections to verify that modifications to Intertek Certified Fire Doors and Frames are done in compliance with the requirements of the Intertek specification listings.