... swivel mechanism... material hot rolled steel motion 360 degree continous rotation Product Category Rotating MechanismProduct CodeROM-LRotation Range360 degreeAppearance size390*3630 ... steel, carbon steel, hot rolled steel , copper, iron, etcTestFatigue test machine Salt spraying testerMakingprocesstamping, metalplated,bending, welding, rivetingSurfacetreatmentgalvanized , copper plated, chrome ...