7 Filters of steel and stainless steel for industrial machines featuring the following types of filter media in the nature of stainless steel wire meshes, stainless steel non-wovens, polyethylene non-wovens, polyethylene terephthalate non-wovens, glass fiber non-wovens, laminated wire meshes, and slotted tubes, all of the aforementioned filters used for removing particles from liquids and gases in mechanical applications, namely, back flush filters, high and low pressure filters, oil and emulsion filters, bypass filters, oil filters for motors and engines, fuel filters, filters and purifiers for industrial machines, sub-micron fuel filters for diesel exhaust, all of the aforementioned filters for use with the following types of machines, namely, with chemical industry machines, namely, machines used in the production of synthetic non-wovens, with pharmaceutical industry machines, namely, dryers and coating systems, and grinders for drug production, with polymer industry machines, namely, heaters for injection moulding, injection moulding machines, polymer melt in plastic production machines for polymer melting, polymer extruders machines, and fiber and film production machines, with engineering industry machines, namely, large color format printers, hydraulic work holding equipment, and machines for processing cooling lubricants, with rotary equipment, namely, gas turbines, with chipping machines and machines used for cleaning of isolators for high voltage cables, with automotive industry machines, namely, with exhaust gas recirculation (EGR) systems for automobile engines, with braking systems, with compressed natural gas (CNG) refueling systems with car induction racing systems, with racing systems, with urea refueling stations, with vehicle hydrogen refueling systems, and with gas conditioning machines in exhaust gas analysis systems, with aircraft industry machines, namely, fuel filters for liquid-propellant rockets, for mining industry machines, namely, filters for hydraulic circuits in underground mining applications, namely, hydraulic roof support shields, shearers, for filtration of hydraulic fluids and coolants, and for spray fluid filtration for dedusting machines; Filter components and filter elements of steel and stainless steel, namely, leaf discs, pleated or non-pleated filter candles, welded or bonded filter candles, filter cartridges, filter housings for filtering liquids and gases which are used in connection with aforesaid filters