... stamping machine, Automatic Punching Machine, Round Plate Machine, Punching Machine, Robot Welding Machine, Argon welding Machine, Plate Sheers, CNC Pipe Bender, CNC WIRE EDM and some testing ... : Coating thickness tester,Roughness tester, Go /Ungo Gauge, Sault spray testing machine, Hardness tester What's used for?crystal star award,zinc ...