When your manufacturing specs call for doors that are fire-rated, corrosion resistant, and durable enough to stand the test of time, you need top quality doors from the best steel doors manufacturer in the industry. You want the top quality brand from a company that stands head and shoulders above the crowd of fire door manufacturers.
You want National Custom Hollow Metal Doors and Frames (NCHM), maker of the most corrosion resistant fire door available; the stainless steel DefendDoor.