Agricultural work chairs including wheels and seats, the main frame extending in the longitudinal direction and having a sheet screw hole penetrating up and down, a first nut and a second nut provided in up and down corresponding to the seat screw holes of the main frame, A first seat fixing housing accommodating a portion of the 1 nut and a second nut and provided on one side of the main frame, and a second seat fixing housing accommodating the rest of the first nut and the second nut and provided on the other side of the main frame Including, the first seat fixing housing and the second seat fixing housing are coupled to each other to provide a receiving portion for receiving the first nut and the second nut above and below the main frame, the first nut and the second within the receiving portion The rotation of the nut is limited, the screw shaft of the seat is coupled to the main frame via the first nut and the second nut, and the wheel is mounted relative to the main frame.
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