Iron-core pu caster 10*2 inch 1,swivel top plate ,pu&iron wheel 2,plate Zinc ... ,steel thickness 5.5mm or 6mm Iron core pu caster 10*2 inch 1,swivel top plate ,pu&iron wheel2,plate Zinc ... 50, 125 x 50, 150 x 50, 200 x 50,250*50,300*50mm 10 inch Iron-core pu caster