The function of the internal cabinet is to store food. The foods are distributed on the shelves, drawers and drawers according to the compartment that the manufacturer assigned to each product.
There are two types of internal cabinet. A type made of stamped and enamelled steel sheet, with a porcelain finish. In this type, glass wool or rock wool are used as thermal insulation and plastic joints for finishing. Another type of internal cabinet is one made of plastic sheet. This plate is molded through a vacuum process ("vacuumforming"). It consists of molding the plastic in a matrix or mold using heat and vacuum. In this process, expanded polyurethane is used as thermal insulation.
