Double black wheel rollers, checked closely from the package.
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A simple inspection video, but every detail matters before shipment.
Direct factory supply with stable production capacity and reliable quality control.
Our team checks the wheel structure, surface, and assembly details during packing preparation.
Designed for sliding doors, aluminum windows, and door & window hardware systems.
Neat bag packing helps protect each roller during storage and transportation.
OEM / ODM customization is available for different models, packaging, and market needs.
Contact us today for product catalog, available models, and quotation.
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