Hydraulic Chrome Plated Steel Bars Pneumatic Cylinder Piston Rods. Customized Dimensions: Length 1000-6000mm, Diameter 3-120mm, and custom chrome thickness available. High Surface Hardness: Induction hardened to HRC58-60 with chrome layer hardness up to 1000HV. Diverse Material Options: Available in C1045, S45C, GCr15, 42CrMo, and other custom materials. Precision Machining Services: Custom threading, drilling, tapping, and milling via 14 CNC centers. High Precision Tolerance: Axis straightness 0.15mm/1000mm with precision grades g6/f7. OEM and ODM Support: Full OEM/ODM services with custom drawings and special requirements. Strict Quality Control: Advanced equipment and scientific testing ensure dimensional accuracy.