Stainless steel is a common metal material resistant to air, water and other corrosion. Stainless steel porous material is a kind of porous material, which is sintered after compression molding by stainless steel alloy powder with good heat resistance and corrosion resistance. It is widely used in gas-solid, liquid-solid separation and fluidization distribution in the fields of petrochemical, coal chemical, food, medicine and so on. The products such as adsorption desulfurization filter of SZorb, raw oil filter, residue filter, oil slurry filter and aeration cone are included.