Melt filter is made from full metal materials by means of argon arc welding.It can be one or a mixture of following materials: stainless steel melt felt,Fe-Cr-Al melt felt, nickel fiber felt, special stainless steel wire mesh, 5-layerstainless steel sintered wire mesh, 7-layer stainless steel sintered wiremesh,etc. It is used in the following industries: oil refinery, petrochemical,chemical, metallurgy, polyester, electronics and pharmaceutical, nuclearpower and coal power, etc.