XY-K-SF-7 New lifting function: the couch bed lifting stroke: 0 ~ 500mm range continuously adjustable; arm bracket on both sides of the head segment of facial features: adjustable stroke 0 ~ 200mm. The head section surface features: adjustable angle relative to the horizontal plane: -52 ° ~ + 54 ° continuously adjustable; lumbar thoracic surface features: adjustable angle relative to the horizontal plane: -10 ° ~ 70 ° continuously adjustable; thigh segment of facial features: the relative level adjust the angle: -20 ° ~ + 20 ° continuously adjustable; about lower limbs segment surface features: adjustable angle relative to the horizontal plane: -72 ° ~ + 40 ° continuously adjustable;