... 4. Tolerance:+/-0.0001 high quality stainless steel worm gear with good priceSpecifications:1) Suitable for various automotive, electronic, telecommunications, ... Co., Ltd. is a private enterprise, established in 2000.• with an emphasis on Researching, Developing, processing and exporting various ... of Iron, Copper and Aluminum, and so on, with an output of over 1 million pieces per month. high quality ...