Quanto ne sai di trattori??

In 1993, c'erano 13 large and medium-sized tractor production factories in China, which produced a total of 16 types of tractors, of which: 14 types of wheeled types, 2 types of crawler types, 2 types of skidding types, 3 types of agricultural four-wheel drive types, with a power range of 18.4 ~ 58.9 kilowatts…