... plate stamping, applicable 500-10,000 kilograms items short movement2,add heavy-duty caster wheel , strong and durable.3,and heavy-duty caster wheel ... materials (nylon, pu, cast iron, rubber) caster wheel.6,According to customers ... caster wheel. 1)iron swivel caster 2)swivel caster with brake 3)screw swivel caster&Scaffolding swivel caster 4)nylon swivel caster 5)pu swivel caster 6)rubber swivel caster ...