The Cold Press working table is made of iron. This makes sure that there is enough strength and minimum of distortion in the finished pieces. One can work with many kinds of material including plywood, Flush Doors, MDF Sheets etc. The cold press is used to apply equal pressure and re-apply pressure on loaded materials. The Cold Press machines must be heavy duty one. Though they have all the desirable features, if they are light duty or not fabricated in engineering way they will not work. Buying them will put one out of the pocket. Better is to choose the model that does not do so.