S.S Filter Cartridge can be divided into metal filter tube, net tube, net barrel and filter tube. It is made of stainless steel net, stainless steel punching net, iron net, stainless steel plate and iron plate. Single layer welding, multi layer welding, and single layer welding, the metal filter tube, net tube, net barrel, filter core and filter tube are interspersed together to form multi-layer filtration.