Train Roof Access Platform
                    Single or dual sided working platform;
Retractable or foldable safety guardrails on the roof
Adjustable height, electric, pneumatic or hydraulic lifting mechanism
Telescopic or flipping pedals
Track or foot wheel walking;
                                                        
                                                                Unilateral and bilateral
                                                                                                                            Telescopic folding
                                                                                                                            Track casters
                                                                                                                            Telescopic flipping