Laminating Machines round blade Product Name: Laminating Machine Round Blade Material: SKH-51, W6Mo5Cr4V2, W18Cr4V, SKD-11, 9CrSi, 65Mn quench hardening: HRC: 59 ° -63 ° Tolerance: ± 0.01 Usage: Laminating Machine Round Laminating machine is mainly used for the blade, the circular blade is mainly responsible for trimming paper membrane-like material. Laminating Machines are generally circular blade pneumatic shear slitting. http://www.kslping.com/fenqie/product_122.html