Machinery Paper cutting blade 1.Material:high speed steel 2.Blade for paper cutting 3.High precision paper cutter blade Machinery Paper cutting blade1.Material:high speed steel 2.Blade for paper cutting3.High precision paper cutter blade Our company uses the high quality import materials to produce the blade.The mainly materials are SK2,SK5,SK4,SK7,SKS7,SKS9,SKH-51,SKH-9,SKH-2,SKD11,H13K,H13, ...