... .screws kits 2.material: bright brass,ROHS Complaint 3.Processing:CNC MICRO TURNING 3.Fast delivery, good quality, low ... price Features: Bright brass screws kits 1.Material:Standard brass, silicon ... polishing, grooveing, dovetailing, gas nitriding, gas nitrid carbonating5.Quality control: Dimensional check througout the production procesures, Project ...