... non-standard alloy steel spur gears 1.Material: 40Cr 2.Weight:480g 3.Shape: spur gear 4.Teeth number:45 High quality non-standard alloy steelspur gears ... 1) Material:Steel, Brass, Copper, Stainless steel, Plastic, Aluminium POM, Delrin, Titanium Alloy etc.2) ... , Brushing & ploshing etc.3) Processing equipments:CNC machining center, CNC lathe, grinding machine, automatic lathe machine, conventional ...