Plastic gears, 1.Material:stainless steel, C45,POM,nylon 2.0.25, 0.3, 0.4, ... .7, 0.8,1 module 3.OEM offered Plastic gears,1. Material: Alloy Steel, Carbon Steel, Stainless Steel, Hardended & Tempered Steel, Cast Iron, Aluminum, Copper ... , timely delivery and great customer service. We can provide small module gear: 0.25M 0.3M 0.4M 0.45M 0 ...