Our 'Sakthi' make Hollow Metal Industrial steel doors are rugged, fire resistant, heavy-duty, secure and commonly used in various warehouse, factory and commercial buildings. They are made out of Galvanized steel Sheets of 1.6 to 1.2 mm thick, with inner core of PUF or Craft paper Honeycore with steel stiffeners. they offer superior durability, energy efficiency, and security against intruders. Steel Door Manufacturer in Coimbatore PUF Door Manufacturer in Coimbatore Fire Door Manufacturer in Karur Fire Door Manufacturer in Bangalore