... 's drawing 4.finish: nickel, zinc/chrome plated precision brass connector* Material:brass,copper,stainless steel,SUS304/303,aluminium,aluminium alloy ... , grinding machines etc.* Very strict tolerance:+/-0.01mm* Inspection equipment: computer tester,RoHS testing,hardness testing* Surface finish:zinc/nickel,Chrome ... order is welcome* The customized designs are appreciated. precision brass connector