harvester blade: 1.Production material : 65Mn(65Mn Spring steel). 2. We produce the combine harvester knife/bladewith import specialized enquipment,and use rolling machine. 3. From the processing craft,the harvetser blade includes rolling and milling teeth. 4. From the surface treatment,the types of the export are paint,galvanized,paint blue with cooking,sandblasting and On anti-rust oil. 5.Main application : combine harvester, swather , lawn mower , straw chopper , straw disintegrator , ensilage cutter ,fodder disintegrator , spade head / plowshares of the planting machine.