Piston Rod, Chrome Plated Bar, Linear Shaft manufacturer / supplier in China, offering SBR12 Guide Rail Optical Axis Opening Fixing Limit Locking Thrust Retaining Ring, SBR Series Aluminum Open Type Optical Axis Clamping Fixing Ring SBR20 SBR25, Aluminum Open Type Optical Axis Fixing Ring Light Axis Positioning Thrust Ring and so on.