non-standard alloy steel spur gears 1.Material: 40Cr 2.Weight:480g 3. ... : spur gear 4.Teeth number:45 High quality non-standard alloy steelspur gears produced by clients' drawingsOur Advantages :Over 12 years ... ) Material:Steel, Brass, Copper, Stainless steel, Plastic, Aluminium POM, Delrin, Titanium Alloy etc.2) Surface treatment:Zinc plating, Anodization, Chemical fim, Powder ...