MATERIAL | Cylinder Bore | 25Mn,27siMn | Rod Diameter | 40Cr | Head | 25Mn | Piston | 45# | Rod TANG | 40Cr | Rod Seal Brand | NOK | Static Seal | "O" Ring Seal | DIMENSION | Working Pressure | 5000PSI | Test Pressure | 6230PSI | FUNCTION | Chrome Thickness | 50-60 | Chrome Hardness | 700-900"HV |
The steel material is same to the original cylinders. |