Filter cartridges refer to all-metal cartridges welded together via argon arc welding. The filter media used in producing melt filter cartridges mainly include stainless steel woven mesh and stainless steel fiber sintered felt. Stainless steel woven mesh is made from stainless steel wires, and its pleated filter cartridges feature smooth channels, easy cleaning, high temperature resistance, corrosion resistance, no wire shedding, and long filtration cycles.