... friendly ISO9001:2008 & 2000; tolerance: +/-0.0001 precision steels spindle Specifications:1) Suitable for various automotive, electronic, telecommunications, ... hardening, carbonadoing, others optional can be as requirements6)Material: iron/aluminum, copper, alloy, carbon steel, 18CrMnTi,20CrMnTi,20Cr, ... , High-precise Stainless Steel products, Pins made of Iron, Copper and Aluminum, and so on, with an ...