1. Product name Soft Surface Gear, Spur gear, Cylindrical Gear. 2. Industrial Applications 1000 horsepower winch Gear reducer 3. Manufacturing Capacity/Size Module 10 Pressure Angle 20° Number of Teeth 28-43 Accuracy DIN 6 4. Material ASTM 4140, ASTM 1045. Chinese standard: 42CrMo, 45#. We also manufacture custom gears according to specific material requirement. 5. Heat treatment Normalizing, Modified treatment, Quenching.