This bucket cylinder pin (K1007256) is made of 45# material, which is ideal for quenching and tempering. After this process, surface induction treatment is carried out following turning and other processes. This ensures that the Doosan Excavator DX225 Link Pin has enhanced durability and wear resistance, and fits the DX225 model perfectly. We can confidently say that this Doosan DX225 link pin was manufactured to meet or exceed Doosan’s own standards.