... gear-test meter, surface measuring meter and so on4) Precision/tolerance:0.0001mm5)Surface processing technic : heat treatment, induction hardening, ... an emphasis on Researching, Developing, processing and exporting various kinds of precision axis and plastic products.• Guoxiang obtained ISO9001:2000 ... Stainless Steel products, Pins made of Iron, Copper and Aluminum, and so on, with an output of over 1 ...