1. Material: Different steel material series, like C45, C22.8, 42CrMo, S235 etc.
2. Process: Die forging with machining
3.Surface Treatment: Polish, Plating, Painting, Coating etc.
4. Strictly material's control and finished parts' dimension testing.
5. Third party ispection: due to customers' requirement, such as SGS, TUV etc.