1. Material, casting,forging,as per customers' requires. 2. The transmission shafts we offered have excellent performance&long longevity/serviceable duration. 3. Our transmission shafts are of high intensity&rigidity. 4. Heat resistant &Distortion resistant. 5. Our drive shafts meet ISO9001: 2000&ISO/TS 16949:2002quality system. 6. With R&D dept., both ODM&OEM orders are welcome. 7.Packing: standard export packing or as per customers' requires. 1)inner packing: plastic sack and paper boxes. 2)outer packing: paper carton and wooden crates. 8. Delivery: prompt delivery. Other relevant parts for cars or machines we have made in our workshop are as follows: bearings Universal joint/gimbal steel structure forge products Pls contact for more details.Give us a chance, you would get a reliable supplier.