... cutting,etc 1.Passed the ISO9001:2000 2. Materials:5CrW2Si,6CrW2Si,Cr12MoV,9SiCr,GCr15,H13,H13K,HMB and HMK 3.Features:High ... intensity,high hardness,high toughness,and high wear resistance. 4.Blade Incision:Smooth without burr and long ... ,papermaking,etc7.Technology:Each technical index reaches the international standard round metal cutting blade