... -rest, knee-rest, head and back slanting. 3)Detachable hollow bed board. KML-3ZD-5-D4 Electric hospital bed Description:1)Electric ... -rest, knee-rest, head and back slanting. 3)Detachable hollow bed board.4)Easy to assemble and disassemble.5)Easy to clean ... .Detachable hollow head/foot board in PP, easy to clean;Detachable hollow bed board, easy to clean, avoid extrusion ...