1. material: brass,bronze, 40Cr,45#;20CrMnTi 2. process: hobbing, shaping; 3. gear inspect center the product: Tooth (Z)Modul(M)Diameter(Φ)Normal Press Angle(a)HandQuality (ISO)Purpose1-2000-60-600mm20°, 25° or according to the customer's requirment.Right, Left, Spur5-8machine, auto,tractor, machine for agriculture,hydraulic pump,engine, transmissionNote: 1.The material can be brass, brozen, ...