Here is the translation of the text to English:

Romanian I.A.R manufactured airplanes until World War II. In 1946, the first Romanian tractor, the IAR 22, was introduced, which was largely a copy of the Hanomag. In 1948, the name became the Brasov Tractor Factory, also known as UTB. Larger production volumes were reached in 1957 with the introduction of the 45-horsepower diesel tractor UTB-450, which was a licensed production of the MTZ-5 tractor.

In 1963, the 65-horsepower U-650, developed in Romania, went into mass production; it was equipped with a 4.8-liter direct injection diesel engine. A couple of years later, the four-wheel-drive U-651 was introduced alongside it. The gearbox had 10+2 speeds with a mechanical power shift. The power take-off was independent of the clutch, and as an additional feature, there was a live power take-off. The four-wheel-drive model's driveshaft was located on the left side, and ground clearance was only 32 cm. Rear-wheel drive was also available American-style, with front wheels placed side-by-side under the frame. Standard equipment included power steering, draft control, and a differential lock. In 1970, exports to Britain began.

In 1973, the improved U-650/651 M was introduced. It featured a renewed D-110 type engine with a Bosch fuel injection pump and, in the four-wheel-drive model, a Fiat driven axle. The appearance was unified to match the smaller angular models. The parallel model was the tracked tractor S-650. The U-650/651 M were in production until the early 1990s. Smaller models from the mid-1960s to the mid-1970s included the U-520 (52 hp) and U-450 (45 hp). The bigger brother of the 651 was the 800 (80 hp), which, aside from the gearbox, used the same basic technology.

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