... , sofa cum bed 1.Environmental materia 2.Easy to assemble&maintain 3.Function 4.OEM queen sofa bed, folding sofa bed, sofa ... %, S shape spring , paper wire , plastic net, webbing ,lining, ect. 2. FOAM CUTTING&GLUE ON THE WOOD FRAME: Hight density foam ... glued with foam and upholster the back or small cushion. (2) PACKING ( we 100% make sure it is the standard packing ...