To build the metal frame of the car door and the plastic lining used feeding system heated to a certain temperature of the material. This system can consist of two identical units, with the ability to automatically switch between themselves and from one installation. All components of the system must have the heating elements, as some materials for lowering the temperature downstream of inadmissible. Control over the operation of the system is carried out by an electric control unit which adjusts the temperature of each component of the system.

High mastic applied to plastic door panels using a special gun with a conical nozzle.