... Part1. Product IntroductionItem DescriptionNameForging parts. CNC machining part:Copper machining part:Precision machining partMaterialBrass, Copper, Carbon steel, ... fittings, elbow, tee, nut; Auto-lathe turning precision part: precision electronic parts, fasteners, and other jeweler accessories ... test bench, micrometer, thread ring gauge and plug gauge and other regular gauges.(5)Certificate: SGS ...