Slotting Knives specially Applied in Corrugated Industry and Printing are with High-Quality guarantee the Clean Cut Slot. These kinds of Knives are always performed with asset including the Upper Slotting Knives and Lower Slotting Knives. In Ctoolmake, Hardened Steel will be used to produce the Slotting Knives, such as SKD-11, SKH-9, SKH-5, Cr12MoV, 9CrSi, Cr12MoV, etc.