犁片 disc blade 材质：65 Mn 硬度：38HRC~45HRC 规格：直径254mm~960mm 厚度3mm~12mm 产地： 山东省齐河县 Material: 65 Manganese Steel Hardness: 38 to 45 HRC Size: from 254 to960mm in diameter and from 3 to 12mm in thickness Holes available 1. Square 2. Round 3. Round with key slot 4. Round and square combined TyPES of disc1. Plain harrow disc 2. Notched disc 3. Plough disc. Minimum order: 200 pcs Delivery : 30 days place of origin: Shandong province, china