1. Product Name Spur Gear, Cylindrical Gear, Eccentric Gear. 2. Industrial Applications Punching Machine. 3. Manufacturing Capacity/Size Module: 8. DP (diametral pitch): 3 inch. Pressure angle: 20¡ã. Accuracy of gear: DIN 7. 4. Material Standard EN/AISI/DIN/GB. ASTM 4140. Chinese standard: 42CrMo, 45#. We also manufacturer custom gears according to specific material requirement. 5. Heat treatment Normalizing, Modified treatment, Quenching, zincing, nickelage. 6. CNC manufacture and dynamic balance machine test. 7. Offers process audit report before mass production.