blade bear high hardness, good resistence to wear, as well as reliable quality and complete variety, meeting your reqirements. 1. Material: 9CrSi, 6CrW2Si, Cr12MoV, H13K2. Hardness:HRC50-63 for could shears,HRC45-63 for hot shears3. High precision surface,burr-free4. retangular section upper and lower blades, 4 edges to use5. 44 years professional manufacture experience in this line6. Strict ...