... durable 3.High quality tungsten steel Rotary slitting blades for slitting machine in slitting line About our products :1.Used ... for cutting machie or thin edge cutting machine.2.Upper cutting Knife.3.Packing machinery ... parts.4.For cutting machine.5.Rotary cutting machine parts.6.Suitable for steel, titanium, tungsten steel, alloy, ceramics, copper and silver material. ...