... or detailed drawings are welcome here. 1. The harvester cutter bar assembly include harvester blade,harvester finger,cutter article and blade ... and so on.2. The material of harvester blade is 65 Mn,the material of harvester finger are Precision-casting steel, ... Forged Steel , Ductile-iron casting , Steel stamping .and the material of blade pressure device is 45# steel. good quality cutter bar assembly