... . Product IntroductionItem DescriptionNameForging parts. CNC machining part:Copper machining part:Precision machining partMaterialBrass, Copper, Carbon steel, ... elbow, tee, nut; Auto-lathe turning precision part: precision electronic parts, fasteners, and other jeweler accessories ... digital projector, Rockwell hardness tester, hydraulic valve test bench, micrometer, thread ring gauge and plug gauge ...