... size:min16mm. galvanized conveyor rollerFree steel roller,Tapered steel roller,Grooved steel roller,Sprocket steel roller,Drive taper steel roller,Accumulating steel roller etc. Roller DiaShaftDiaTube ThicknessRoller ... treatmentErecting structureΦ1661.2,1.550-1500PVC,Coat rubber,Carbon steel ,Stainless steel , Aluminium alloy galvanization\chromeplate\skin glue\plastic\injectiona.spring ...