electric bed 1,Function: backrest & thighrest adjustment, HI-LO control 2,Casters ... ,antibacterial powder coating.3,One-off forming of carbon-steel bed plate,great strength ,large air-bleed hole design,well-ventilated ... molding,nice and elegant,firm and durable.5,Aluminum alloy foldable guard rails,easy and reliable operation.6,Silent casters(optional ...