crank hospital bed function medical manual 

Product configuration Headboard ABS cambered headboard, new headboard, beautiful atmosphere Guardrail Aluminum alloy steel folding 6 - gear guardrail Wheel ABS cambered wheel, more flexible rolling, no noise Bed surface It is made of a thick 1.0mm cold tie belt welded and punched Mattress It is composed of 8CM thick half palm silk and half sponge…