... 2)Fork: cold-roller steel yoke 3)Wheel diameter: 100mm,125mm,160mm,200mm caster:Wheel: PU tyre + PP rimFork: high grade ... coatingType: swivel,rigidMounting: top plateFeatures:1.caster: rigid caster, swivel caster2.PU wheel: excellent rolling resistance,anti-abrasion,water resistance ... temperature: -20~806.suitable scope: factory,warehouse shelf, heavy-duty appliance, etc. 2010 new heavy-duty caster