1. The German Engineering 21 to 30m mobile aerial work platform 2. The DE21-30M mobile aerial work platform 3. The 21 to 30m vehicle-mounted aerial work platform by German Engineering 4. The DE21-30M vehicle-mounted aerial work platform 5. The German Engineering mobile aerial work platform with a height range of 21 to 30m 6. The DE21-30M mobile elevated work platform 7. The 21 to 30m vehicle-mounted elevated work platform by German Engineering 8. The DE21-30M vehicle-mounted elevated work platform 9. The German Engineering vehicle-mounted aerial lift with a height range of 21 to 30m 10. The DE21-30M vehicle-mounted aerial lift