1. Material: 42CroMn; 2. Hardness: More than 57HRC; 3. Excellent performance; 4. High quality.

Product Description:

Name: Piston Rod Thickness: 20 TO 40 Micron Surface Roughness: Ra ≤0.2 Micron and Rt≤2 Micron Tolerance: ISO f7 on the diameter Ovality: Half of the tolerance ISO f7 Straightness: ≤0.2mm/m

Compressor Piston And Piston Shaft