there is disclosed a method for manufacturing products through the use of waste materials of various kind , such as heterogeneous plastic materials , wood , minerals , etc ., derived from recycling processes , differentiated waste collection systems , solid urban wastes , industrial processing scraps or by - products , and the like , such products being adapted to be used in a wide range of most varied applications , particularly though not exclusively for manufacturing structural parts and decorative finishes for office furniture as well as furniture for cinematography theaters , communities , concert halls and the like .