... .Transmission parts 4.certification:ISO9001:2008 Small Plastic Worm and Worm GearsWe can produce gears, worms,worm gears ,gear boxes, worm, worm wheel.Briefly description:colour: pom white colourcertification ... complete solution for your gear needs, from various plastic gears,gearboxes ,worms ,worm gears,worm wheels,pinions to complete assembly services,from prototypes to high volume ...