Plastic gears, 1.Material:stainless steel, C45,POM,nylon 2.0. ... .5 ,0.6 , 0.7, 0.8,1 module 3.OEM offered Plastic gears,1. Material: Alloy Steel, Carbon Steel, Stainless Steel ... , timely delivery and great customer service. We can provide small module gear: 0.25M 0.3M 0.4M 0.45M 0 ...