toy 0.1 plastic module gears single /multi cavity injected mould 0.005-0.03mm ... precision customed surface treatment toy 0.1 plastic module gears Specifications:1) Suitable for various automotive, electronic, telecommunications, mechanical ... steel, 18CrMnTi,20CrMnTi,20Cr,20CrV,1045 steel, others optional7) Products range: standard component or non-standard component. Feature: ISO9001:2008 & ...