This 3-crank manual hospital bed are made by tooling to ensure uniform high quality streamline mattress base Integrated stamping frame and mattress base are steel made with epoxy polyester coated & baked finish, resistant to chipping and scratching. Head/foot board are made of PE plastic which is washable and removable Aluminum alloy siderail 5'' castors which is noiseless,two of them with brake, IV pole Function: Height adjustable:475-730 mm back rest lifting angle is 0-80 degrees knee rest lifting angle is 0-40 degrees Goss Weight:100.00kg 60pcs/20ft container