The covering plate (4) for the tread surface of a step, e.g. on a vehicle such as a truck, is made from a synthetic material and has fastenings that allow it to be removed and replaced, including at least one lug on the underside of the plate that goes beh...

The opening in a vehicle is formed within a frame (10), manufactured in plastic material, and which is hinged to the body of the vehicle. The frame is formed as a single piece of bodywork, in the form of a complete continuous track, suitable to form and ma...