... caster series, medium size caster series, heavy-duty caster series, super-heavy caster series, single caster series(rubber caster,inflatable caster,forklift caster, high temperature phenolic caster, polyurethane caster, nylon caster, iron caster ... for money consideration1.This wheel type is Nylon wheel with ball bearings.2.Standard: ISO9001/ISO140013.Color:white4.Loading capacity: from ...