China Hard CNC Machine Shaft Diameter 16mm 20mm 25mm 30mm 35mm 40mm 45mm 50mm 60mm 80mm with Chrome Plated, Find details about China Linear Rod, harden shaft from Hard CNC Machine Shaft Diameter 16mm 20mm 25mm 30mm 35mm 40mm 45mm 50mm 60mm 80mm with Chrome Plated