AGRICULTURAL MACHINERY: Our company has been a reliable and excellent manufacturer of disc blades, plough discs , disc harrow , disc plough and disc ridger .We can supply all various discs according to customers' drawing and samples . Main Features: Made of qualified 65Mn spring steelExcellent wear resistanceGood elasticityHigh hardness Main specification : DiameterThicknessWeight INCH MM KG 1231.77163 31834.220 3 4.9 20 4 6.6 224 8 22 510246 15 267 19.528 8 272810 33 3010 383210 44 3212523612 653812 884212 13346 12 144