Iron-core pu caster 10*2 inch 1,swivel top plate ,pu&iron wheel ... 5mm or 6mm Iron core pu caster 10*2 inch 1,swivel top plate ,pu&iron wheel2, ... plate Zinc or spray plastics3,steel thickness 5.5mm or 6mmFeatures:1) Heavy duty industrial caster ... with cast iron molded PU wheel2) Swivel, rigid, swivel with brake3) Size: 100 ...