The structure is strong and compact, the working performance is stable, and the working quality is good; >The front disc harrows break up the stubble and loosen the soil, and the deep loosening teeth arranged in double rows are inserted into the soil to loosen the soil. The working depth is 15-20cm deeper than the disc harrows, and it can be adjusted hydraulically to conserve moisture and protect the soil, which is conducive to seed germination; >The heavy-duty pressure roller breaks up the soil and levels it with good results; >The traction and mounting frame is equipped with a hydraulic shock absorption system, which helps the machine to follow the contour, the operation is stable, and the machine and tractor mounting system are protected from damage. There is a linkage system between the traction and mounting frame hydraulic system and the depth-limiting walking wheel hydraulic lifting system, which ensures that the front and rear disc harrows, that is, the front and rear…