... 2. Configuration: Worm and worm gear, bearing, housing and lead screw 3. Function: Elevating, Lowering, Pulling, Pressing, Pushing, Rotating ... 4. Power Source: Manually or Electrically 5. Characteristic: Positioning precision, Safely self-locking, Heavy duty, ... : HS Code: 84289000Trademark: NOSENOrigin: ChinaMin. Order: 5 sets Motorized Screw Jack/Worm Gear Screw Jack/Worm Gear ...