PUF Insulated Steel Doors PUF insulated Steels with excellent quality, elegance, with Colour Choices. We manufacture PUF Core Steel Doors in Coimbatore that matches international standards and are made using CNC Machines. These Cost Effective doors are rugged, durable, long lasting and offer great endurance throughout time. Clients can avail industrial doors in different sizes with the choice of glazing, single or double rebated frames, with single or double door leaves.