... :injection and galvanize 4.types:fixed,swivel and with brake Caster keywords: steering caster wheel, polyurethane caster, rubber caster, fork lift wheels, brake wheel, omni ... -diredtional wheel, directional wheel, cast iron wheel, heavy-duty caster, screw caster, damping caster, inflatable caster.polyurethane casterspecifications:1. anti-friction, 2.good impact resistance ...