The middle door pulley bracket is made of metal, which is stable and durable; the roller part is made of high-strength engineering plastic, which has good wear resistance and stability. Function: This sliding door roller assembly effectively reduces noise that may affect cabin comfort, thereby enhancing the driving experience; Structure: The sliding door hinge is made of surface-treated reinforced metal, improving its resistance to damage; Installation: A simple replacement process restores function and appearance without the need for complicated tools; It helps to alleviate the jamming, abnormal noise or shaking of the sliding door during use and improve the operation of the door body., Manufacturer: PENGNAQP