... the quality 4.Sample order works here Item NO. cnc machined jig and fixtureMaterialsIron, aluminum, steel, copper, plastic, ... of machining parts:1, Material :Brass , bronze , copper , aluminium , alloy , stainless steel and so on;2, Usage: auto ... , copper machining , plastic machining,CNC Machining parts, CNC milling and turning parts , CNC milling parts, CNC lathe turning parts, grinding parts, ...