1.PTFE impregnation,Heat setting 2 .Air permeability(l/m2/s):150- ... 300), we have different products to meet them. FMS is more hard-wearing and more strong than ... load more pressure. Compared with synthetic chemical fiber, FMS is heat-resisting and corrosion resisting with good stability ... , strength and low cost. FMS is widely used in steel, color metallurgy, chemical ...