Harvester cutting knife assembly, cutter arbor material is 35#,45# cold drawn steel. Specification:5¡Á20,6¡Á20,6¡Á21,6¡Á25. the remaining part can be changed by the customers¡¯ demands. Mainly use: minisize combine harvester, cutter-rower, cropper, field management machine and any other kinds of device for agriculture machine.