The trade mark consists of an impression depicting a vertical segment leaning to the left from bottom to the top, bearing in the upper right part a slightly flattened semi-circumference tangent to the side and in the left side three parallel horizontal segments. All evoking an reversed letter E and A letter P having common vertical rods, and being followed by the word PRESEZZI in fancy characters placed above the word extrusion, also in smaller fancy characters and underlined by a horizontal line.