ploughdisc,harrowdisc,discblade,ploughblade,discploughblade,discharrowblade,ploughdiscblade,harrowdiscbladeMaterial:65ManganeseSteelHardness:38to45HRCSize:from254to960mmindiameterandfrom3to12mminthickness犁片，耙片，圆盘犁片，圆盘耙片材质：65Mn硬度：38HRC~45HRC规格：直径254mm~960mm厚度3mm~12mm)