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Roller nethanger steel ball bearing is an accessory used on sliding doors, sliding windows or other equipment that requires smooth sliding. It is composed of steel rollers and bearings, which are durable, smooth sliding, quiet operation and easy to install. This accessory ensures that doors and windows slide smoothly when opening and closing, reducing operating effort while reducing noise and friction. Since there are many different sizes and specifications available, the needs of different sizes of doors, windows and tracks can be met.
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