Stainless steel three-crank hospital emergency bed Features: 1)stainless steel three-crank hospital bed 2)Aluminum alloy collasible guard rails. 3)The bed surface is made of letheroid ,soft and comfortable. 4)The metallic electroplated retractable craking bar withour repair. 5)The truckles adopt full-braked mute rubber-plastic truckles,which can rotate flexibly