Material: 65Mn or 60Si2Mn (Sup6), SUP9, 28SiMnB 2, Heat treatment: Normalised-hardened & tempered HARDNESS: 38-47HRC Every sizes tiller blades CUSTOMEDFEATURES:1.Material : 60Si2Mn/65Mn2.PROCESS : FORGED3. HEAT TREATMENT : NORMALIZED, hardened & tempered 4.HARDNESS: 38-47HRC5. APPLICATION:FOR TILLAGE , HARROWING SOIL BREAKING/WEEDING AND DEEP PLOUGHING 6.PACKAGING : CARTON / WOODEN CASE7.COLOR: ...