Type of Market: After Market Application: Mercedes Benz, volvo, Volvo FM
1. Material: 20Cr
2. Surface hardness: 58- 64HRC
3. Inner hardness: 25- 45HRC
4. Model Number: 5- 279X, 5- 280X, 5- 515X and so on (as buyers' requirements)
5. Brand Name: According to each ...