Cast Iron scaffold castor Item No.: 31xxxB Dia.: 160 mm, 200 mm Loading capacity: 200 kg, 220 kg steel roller bearing mold on rubber scaffold castor - rack caster, storage equipment, component, accessory, construction tool.Item No.: 31xxxBDia.: 160 mm, 200 mmLoading capacity: 200 kg, 220 kgsteel roller bearingCustom design and OEM are welcome. Scaffold castor