... scale public area, road, railway, outdoor mining area, and emergency scene.1, Pneumatic Heavy-duty winch;2, Anti-fall, safe ... for each light assemble;6, Original design of the surface;7, With damping spring in the chassis;8, Emergency shutdown ... protection;9, Plastic treated, anti-rust, anti-corrosion and beautiful.10, Optional functions, (electrical waving of light bar, remote ...