E koho i ka 20Crmo, 42Crmo, 40CrNiMo mea hao.Hoʻohana ʻia ka forging, machining, heat treatment, shot blasting, grinding a me nā kaʻina hana ʻē aʻe no ka hoʻomaikaʻi ʻana i ke kūpaʻa abrasion a me ka hopena o ka hopena o nā huahana, a hoʻonui i ke ola lawelawe huahana.