caster: 1)Wheel: PU tyre + PP rim 2)Fork: cold-roller steel yoke 3)Wheel diameter: 100mm,125mm,160mm,200mm caster:Wheel: PU tyre + PP rimFork: high grade cold-roller steel yokeLoading capacity: 270kg,300kg,350kg,400kgWheel diameter: 100mm,125mm,160mm,200mmBearing: ball bearingSteel thickness: 3.5x3x3.5mmPlate: double ball racewaysFinish: Zinc-plated,power coatingType: swivel,rigidMounting: top ...