precision crown gear 1.material:POM,nylon,PA66,PP,PC . 2.Modulus: ... ,worm gears ,gear boxes, worm, worm wheel.Briefly description:Type:crown gearcolour: pom white colourcertification:ISO9001:2008moq:5000pcspacking : with polybag in ... ' requestProduce as drawings1. Gear for industry and auto ,especially for electric toys2. Meet your need for high precision on teeth of ...