
Shock Absorber Rear Piston Shaft. High Hardness Surface: Hard-chromed surface with electroplating hardness of Hv800-1050 for durability. Precision Tolerance: Inner diameter tolerance strictly controlled at H8-H9 for high precision. Advanced Technology: Utilizes Honed & SRB (Skived and Roller Burnished) technology for superior finish. Low Roughness: Inner diameter roughness maintained at RA 0.4 micron (max) for smooth operation. Customization Available: Customization from samples and designs is supported for specific needs. Wide Material Options: Available in all kinds of brass, copper, stainless steel, and other materials. Strict Quality Control: 100% inspection of finished products with full surface condition control. Multiple Standards: Manufactured to meet DIN2391, EN10305, JIS G3445, ASTM A519, and GB/T 8713.