Different from other types of expanded metal, Shang Kai Steel's XF Type is manufactured by the same methods but it goes through an additional flattening process. This results in a level surface with no protrusions. The flat quality of XF Type makes it ideal for adhering to other materials for support. XF Type can be used in air filters with a foam and in reinforced glass which is made by incorporating XF Type between two panes of glass. XF Type can be made from XG, XS, SK, and Ultra Fine Mesh Type. and is also a great substitute for perforated metal.