Blade Pass ISO9001:2000 Yanjing receives China Patent for Invention Self-developed H13K,HMB and HMKhigh alloy steel BladeLinear guideway, shear blade, circular knives and spacers, cold and hot cutting linear blade, Square profiled cutting blade, Wear plates, Sheet metal coils cutting, etc 1 Pass the ISO9001 quality certification 2 The brand yanjing receives China Patent for Invention3 Maximum ...