In order to meet customer requirements, improve product quality and continuouslyimprove product NVH, recently, WB Quality Department will formally conduct NVH bench testing after taking pre running in and other measures before NVH testing by adding the process method of washing and running in. After internal and external verification, NVH performance has been greatly improved andrecognized by customers. WB will adhere to the quality policy of "quality first, customer first;continuous improvement, endless", promote the improvement of the company's operation and management performance, and lay a foundation for the rapiddevelopment of the company's quality.