1. Material: 9crsi, 6crw2si, cr12mov, h13k etc. 2. Hardness:hrc50-63 for could shears, hrc45-63 for hot shears 3. High precision surface, burr-free 4. Retangular section upper and lower blades, 4 edges to use 5. 12 years professional manufacture experience in this line 6. Strict quality management system 7. Small orders accepted. 8. Oem and odm 9. Standard: iso9001:2000 Strong wooden box
