... meter and so on4) Precision/tolerance:0.0001mm5)Surface processing technic : heat treatment, induction hardening, carbonadoing, others ... an emphasis on Researching, Developing, processing and exporting various kinds of precision axis and plastic products.• Guoxiang obtained ... grown into a professional manufacturer, supplying Stainless Steel Axis centers, High-precise Stainless Steel products, Pins made ...