1. material: brass,bronze, 40Cr,45#;20CrMnTi 2. process: hobbing; 3. gear inspect center about the prodcuts: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 or Left5-8S\CW\WH\WP Series Reducer, transmission partsour workshop:machine:package: brass worm gear for reducer and machine