... . 2.Tolerance:+/-0.01mm 3.certification:ISO9001:2008 OEM Injection Plastic gears as your design1):Production machine:most advanced CNC ... MBS, ABS, PC,PPS,PVC,PA,PE ,PMMA;6):Surface processing technics: Heat treatment, Induction hardening, carbonadoing, Others optional;7 ... offer a complete solution for your gear needs, from various plastic gears, gearboxes ,worms ,worm gears to complete assembly ...