Abstract: A composite section for manufacturing a case, in particular a show-case, is described. Two identical, generally L-shaped glass panel receiving sections (13, 13') are placed in mirror-symmetrical relationship with the apices away from one another. The legs of the L have flanged edges (16, 17) defining an angle of at least 90.degree.. The sections (13, 13') are interconnected by two cross-sectionally substantially C-shaped frame sections (18, 19) each engaging with two opposite flanged edges (16, 16'; 17, 17') of the two glass panel receiving sections (13, 13') and adapted to be pressed away from one another by means of pressure elements (24).