Made of metal fiber wire by bundle drawing process, the diameter is as fine as 1μm ~ 40μm. Since the diameter of metal fiber reaches the ultra-fine-micron level, it not only maintains the properties of stainless steel such as electrical conductivity, thermal conductivity, corrosion resistance, high elastic modulus and tensile strength, but also has softness and high specific surface area similar to other textile fibers, so It is the perfect base materials for the production of various stainless steel fiber products. It can be widely used in textile, filtration, metallurgy and environmental protection and other fields which covering the fields of industry, civil and military.