... meter, projector meter, microscope, gear-test meter, surface measuring meter and so on4) Precision/tolerance:0.0001mm5 ... Co., Ltd. is a private enterprise, established in 2000.• with an emphasis on Researching, Developing, processing and exporting various kinds ... Copper and Aluminum, and so on, with an output of over 1 million pieces per month. stainless steel piston pin bushing with screw thread