1. Material: W2-91/2(ASTM); BW1B(BS);1203Y290(NF);SK4(JIS); 6CrW2Si 2. HRC:45 55 Centigrade degree 3. Less oxidation and decarbonization, and hardness uniform. 4.Tools heated by special atmosphere oven,and bulk heat treatment. 5. Segmented and Solid tools 6. Tool straightness: 0.01mm/m; less than 0.05mm on full length 7. Working surface roughness of tool: less than 3.2 8. No crack,notch and interlayer 9. Joint width of any two segmented upper tool or lower tool: less than 0.05mm 10. Straightness of combined segmented tools: less than 0.08mm on full length 11. Parallelism of tool on full length:less than 0.06mm 12. High precision and high intensity 13. Easy setting and long life 14. Fit for any press brake machines 15. 44 years professional manufacture experience in this line 16. Strict quality management system 17. Small orders accepted. 18. OEM and ODM 19. Standard: ISO9001:2000; ISO14001:1994;OHSAS18001:1999