... blades, rollers,etc4 Manufactures blades with maximum length of 5500mm and maximum diameter of 1500mm, The products5 Materials5CrW2Si, 6CrW2Si, Cr12MoV ... , 9CrSi, H13, H13K HMB and MHK and self-developed HMB and HMK high alloy series 6 With the features ... working life.8 Widely used in industries of steel, rubber, papermaking, and so on. 9 Each technical index reaches the international ...