... : 40Cr 2.Weight:250g 3.Type: cnc machining 4.Finish: anti-rust High quality high quality precision cnc turning steel pulley produced ... , Turning, Broaching,etcFinish:Zinc plated, Chromated plated, Electrophoresis, Powder coating, Anti-corrosion,etcStandard:OEM manufacturing as per customers requirements or drawings ...