... ISO9001:2008 ; tolerance: +/-0.0001mm Little Moudle Worm Gear with metal Specifications:1) Suitable for various automotive, electronic, telecommunications, ... ., Ltd. is a private enterprise, established in 2000.• with an emphasis on Researching, Developing, processing and exporting various ... and Aluminum, and so on, with an output of over 1 million pieces per month. Little Moudle Worm Gear with metal