... 0.1-3.0 ISO9001:2008; tolerance: +/-0.0001 worm and wheel gears Specifications:1) Suitable for various automotive, electronic, telecommunications, ... replied in 24 hours in workday. 2. Well trained and with experienced staffs to answer your questions.3. Your information for ... , Pins made of Iron, Copper and Aluminum, and so on, with an output of over 1 million pieces per month. worm and wheel gears