An uneven patterned metal strip or plate is formed with an uneven pattern as a surface decorative pattern. The pattern is constituted of one or more pattern units containing a plurality of uneven dots. Each of the uneven dots has a size D. The uneven dots are arranged in a predetermined density to have given ratio eta of occupying area versus plane area in said pattern unit. The size D and area ratio eta being in a range of: 10 </= D </= 300 ( mu m) 30 </= eta </= 100 (%) and the size of said pattern unit has minimum length of 1 mm.
