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Wood Chipper Blades are surely made of high quality raw material, which is usually steel. Generally speaking, high quality steel is composed of iron, carbon, sulfur, silicon, molybdenum, manganese and chromium and so on. And the containing of Mo, Mn, Cr, especially Cr, determined the quality of steel. Mo, Mn and Cr are all expensive; as a result, a cutting knife maker has to pay a lot for making high quality products.
