Medium Heavy Duty PU Caster Wheels 4"/5"/6" 200–300kg Load Double Ball Bearing Swivel Casters with Steel Core
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Medium Heavy Duty PU Caster Wheels 4"/5"/6 " | 200–300kg Load | Double Ball Bearing Swivel Casters with Steel Core Function Steel Core PU Wheel: High-strength steel core provides superior load capacity and deformation resistance. High Wear Resistance: The cast PU structure offers superior abrasion resistance, ensuring non-marking and quiet operation. Heavy-Duty Structure: Reinforced steel bracket with zinc-plated finish, rust-proof and durable. Smooth & Flexible Rotation: