... .5 3.Tolerance:+/-0.01mm 4.certification:ISO9001:2008 Spur Plastic Gears with Nylon MaterialWe can produce gears, worms,worm gears ,gear ... boxes, worm, worm wheels.Briefly description:product name : spur plastic gear with nylon materialcolour: beigecertification:ISO9001:2008moq:5000pcsSurface processing technics: Heat treatment ...