Product: High Speed Steel Circular Knives For PaperMaterial: HSS,Website:http://www.chinabettool.com, High Speed Steel, other materialsType: Standard, Non-standardProduct Description:We provide the slitter knives, slitter blades, circular knives, the material can be HSS or other materials.It can be used to cut normal paper, corrugated paper, carton paper and so on, our products are widely used in many paper mills. The slitter machines are from Germany or Italy, our products are also no problem.Between the top knife and bottom knife, there will be a gap, this is very important, the gap distance is according to your material type and the thickness of material.