undercarriage are a regular set of components and equipment that are directly connected to the ground. The alloy used in the manufacture and production of Undercarriage parts, has a significant effect on the hardness and longevity of these parts. ” Donyae Komatsu” co.ltd is Providing high quality Korean and Italian Undercarriage parts such as (DCF, BEC, ITM and ITR) to minimize the depreciation and erosion of your machine.