1) It is produced as per DIN standard or other standard you need

2) Material: C45, 42CrMo, 20CrMnMo, 20Cr2Ni4, 35CrMo, 20CrMnTi or
    other high intensity alloy steel or aluminium or copper or stainless steel etc
3) Tooth without heat-treatment or flank carburization and nitrification, with rigidity of HRC58-62
4) Gear precision: Grade VIII or Grade VI as per your request