Your browser isn’t supported any more. Update it to find the best YouTube expertise and our most up-to-date options. Find out more Two principal forms of tractors exist: wheel tractors and monitor tractors. Wheel tractors are for tough, paved surfaces like asphalt. Track tractors are for mud and soft terrain. https://heavymachinery46788.blogolenta.com/26356200/the-smart-trick-of-heavy-machinery-that-no-one-is-discussing