ARPA

Plough with 2 shares 6 inches for small horsepower tractors from 12Hp.

Plough with 3 shares 6 inches. for small horsepower tractors from 20Hp.

Plough with 2 shares 8 inches. Minimum horsepower tractor 20 Hp. Depth of relief 20-25 cm.

Plough with 3 shares 8 inches. Minimum horsepower tractor 25 Hp. Depth of relief 25 cm.