1. The size of the bed should be greater than 1340 x 520mm, because the equipment is suitable for any examination, abortion, and other outpatient surgery according to the human function structure; The carrying weight is 135KG; 2. Bed surface height: 680~930mm; Lagging Angle: - 8 ° ~ 70 °. Plate adjustment Angle: plus or minus 20 °; 3. Vertical rotation Angle: since the device is a movable production bed with hidden casters, the device can do any vertical rotation Angle; 4. Electric control is adopted, which can be applied to a variety of different body position examination and surgery; The back plate is controlled by controllable gas spring, with a wide range of adjustment;