We are a manufacturer specializeing in producing Synchronous Motor in Taiwan & China over 25 years.  Our motor gear sets are designed of Brass & Steel (Not plastic gear) by Swiss "Mikron" hobbing machine and SECC material cover plate.  Motors are with strong durability & reliability and have passed "UL", "EMC" and CE marking approvals. Pls visit our webiste for more motor information, http://www.spdomotor.com.tw