Conveyor roller Used in mining,cement,steel,harbor,etc. Standard:ISO, ... ,DIN,JIS, etc Certificate:CE, ISO, BV, SGS, etc Detailed conveyor roller idler feature: 1.Roller idlers Dia 50mm-219mm, length ... spraying painting, baked paintingThe pictures: 2012 now type good quality conveyor rubber coated roller idler, ball bearing roller idler