... feet expandable flexible extendable conveyor1,HD casters with brake.5 heavy duty caster with urethane tire & brake, features easy handling, ... is in use.2,By reinforced structure and SKB heavy duty skate wheel, EHS conveyor achieves high load capacity, ... aluminium alloy (standard), zinc plated carbon steel (optional), powder coated carbon steel (optional)4,Square tube legs..double heavy duty square ...