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Automotive wheel arch liner injection molds are not only key equipment for producing high-quality wheel arch liners, but also crucial components for ensuring the overall performance of a vehicle. Extending the lifetime of the car's chassis, wheel arch liners primarily protect the chassis from mud, sand, rocks, and other trash. They also stop rainfall from entering the chassis in bad weather, therefore lowering the risk of rust. Furthermore, excellent wheel arch liners can considerably lower tire noise and enhance riding comfort. High-quality wheel arch liners can lower interior noise by 3-5 decibels. Therefore, manufacturing precision is particularly important in car wheel arch liner injection molds. This article will explore in depth why the manufacturing precision of automotive wheel arch liner injection molds is so critical.