Outdoor using 60KG 2.5" plastic trolley wheels
Housing：
Solid steel welded construction,
zinc plated double ballrace swivel head,
dustproof seal heat treated ballrace,
hardened steel balls
Wheel:
Materials: PVC
Bearing type:double ball bearing
Feature:
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Red PP vs PVC caster wheels, easy moving and rusted prevent.
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Wildly use in industrial trolley.
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PU material welcome.
