... product:Blade Linear guideway,shear blade,circular knives and spacers,cold and hot cutting linear blade,Square profiled cutting ... Passed the ISO9001:2000 2. Materials:5CrW2Si,6CrW2Si,Cr12MoV,9SiCr,GCr15,H13,H13K,HMB and HMK 3.Features:High intensity ... Widely used in industries of steel,rubber,papermaking,etc8.Technology:Each technical index reaches the international standard blade for steel processing