- 1. Universal wheel`s system SD for tractor JD 6130D 450x700 mm
- 2. Installation manual of front additional wheels DW20Bx30 with twining system SD for tractors John Deere 7 adn 8 series
- 3. Installation manual of rear additional wheels DW23Bx42 with twining system SD for tractors John Deere 7 and 8 series