(1)One-piece without welding
(2)Forging, High resilience to prevent breakages
(3)It is one of the most common, strong, durable, efficient, which commonly used to loose rock
Parabolic shanks (figure 4a) require the least amount of horsepower to pull. In some forest applications, parabolic shanks may lift too many stumps and rocks, disturb surface materials, or expose excess subsoil. Swept shanks tend to push materials into the soil and sever them. They...