Sheet rolling method

Method of providing mirror and dull finishes, without etching, grinding or polishing, on the surfaces of rolled sheet metal products obtained by subjecting sheet metal billets to a plurality of reverse rolling operations in a rolling mill, wherein each roll operation includes rolling the sheet metal billets in a plurality of stands in said rolling mill with application of cooling emulsion to the sheet metal billets prior to each rolling step in each mill stand, which comprises directing a jet of a gas carrying solid hard spherical bodies of a material selected from the group consisting of glass, aluminum oxide, zirconium oxide, chrome-nickel alloys and ice of 40-200 microns diameter onto the surface of a hot sheet metal billet prior to each rolling step in each mill stand in each reverse rolling operation and prior to each application of the cooling emulsion to the sheet metal billet, and rolling the thus treated billet after each such treatment onto a stand of the rolling mill, whereby the surface obtains the desired finish.