1. material: brass, 40Cr,45#;20CrMnTi 2. process: hobbing; 3. gear inspect center about the product:Tooth (Z)Modul(M)Diameter(Φ) ... the customer's requirment.Right, Left, Spur5-8machine, auto,tractor, machine for agricultureNote: 1.The material can be 16MnCr5, 40Cr, 45 ... hardening, Quench and temper, Medium and high frequency.work shop:machine:inspect:package: spur gear for machine pump