... /Hydraulic Cylinder Piston Rod ground,hard chrome plated,tempered Grade: CK45/S45/SAE1045,SCM440/SAE4140 Hard Chrome Plated Bar/Hydraulic Cylinder Piston ... Rod Supply Condition:Ground and chrome plated,temperedGrade: CK45/S45/SAE1045,SCM440/SAE4140,EN8D,ST 52, ... 1000 mm Inch OD Size: OD 1/4" to 20".Chrome Thickness: 20-30 Micron (or according to customer's request ...