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 ... brake5.applicable temperature: -20~806.suitable scope: factory,warehouse shelf, heavy-duty appliance, etc. 2010 new heavy-duty caster