高硬度耐磨焊絲，適用于磨粒磨損表面堆焊 High hardness wear-resistant wire, it is used to abrasive wearsurfacing welding. HB-YD172(Q) 1.6 ≥40 用于堆焊齒輪、挖泥斗、礦山機械等磨損件 Applied to repair surface of high impact wear parts, such as gear aud bucket and mining machinery. HB-YD207(Q) 1.6 ≥50 用于堆焊推土機 ，螺旋槳等磨損零件 Applied to repair surface of high wear parts, such as bulldozer blade and propeller. HB-YD212(Q) 1.2/1.6 ≥50 用于堆焊各種受磨損的機件表面，如齒輪、挖斗、礦山機械 Applied to repair surface of wear parts, such as gear mud bucket and mining machinery.