Zimapangidwa ndi chitsulo chotentha cha H13 kapena 38CrMoAl ndi zipangizo zina Kutentha kwa nitriding kapena nitriding Kumakhala ndi kuuma kwakukulu (HRC56-HRC59), kukana kwabwino komanso kumveka kwamphamvu; anthu omwe ali ndi zaka zambiri zantchito Yopangidwa ndi akatswiri;