High quality Massager Plastic Gear 1. ISO9001:2008 certification 2.In a Variety ... Design 3.OEM/ODM offered 4.Big output High quality Massager Plastic Gear Paramer 1.number of teeth:33 2.modulus ... , PC,PPS,PVC,PA,PE ,PMMA;6):Surface processing technics: Heat treatment, Induction hardening, carbonadoing, Others optional;7):Products could be ...