PURPOSE: to make exist the solid substances such as graphite, etc. uniformly in the metal such as copper, etc. in a dispersed state without being segregated, by blowing the plated graphite, etc. into the molten metal and sodifying the metal under pressure, at the production of the sliding material such as bearing, etc. consisting of the metals such as Cu, Al, etc. having not the compatibility with the solid lubricants, such as graphite, MoS2, etc.