Honed Tube, Chrome Plated Bar, Chrome Bar manufacturer / supplier in China, offering Ck45 SAE1045 St52 E355 Induction and Hardened Hard Chrome Plated Bar Precision Hydraulic Cylinder Rod Piston Rod, SAE1045 C45e Piston Rod S45c Hard Chrome Hydraulic Cylinder Plated Rod Diameter 45mm for Linear Shaft, 4140 St52 Ck45 High-Strength Hard Chrome Plated Bar Tolerance F7 G6 Quenched and Tempered Piston Rod and so on.