sliding wheel 1.Material: 40Cr/steel 2.Weight:250g 3.Type: cnc ... High quality nignbo high quality precision cnc machining steel sliding wheel Advantages :Over 12 years experienceHigh quality control,Competitive price, ... steel, Alloy Steel, Stainless steel, Copper , Brass, Aluminum,etcType:Drilling, Milling, Turning, Broaching,etcFinish:Zinc plated, Chromated plated, Electrophoresis, Powder coating ...