aluminum alloy retractable running board electric power,Deep waterproof treatment The motor and the connecting plug adopt the water-proof treatment.Dual insurance system Fully sealed controller, upgraded ECU, the core is made in the USA.Die-cast aluminum swing arm CNC precision machining , die-casting high precision.High-tech operation motor 150,000 times of opening and closing tests,long service life, Precise control, automatic response,ultra-low noise
