Quality control refers to a series of measures and methods to ensure that a product or service meets certain standards and requirements. Its main purpose is to detect and eliminate possible defects or problems in the product or service to ensure that the final product or service meets the needs and expectations of customers. Quality control usually involves all aspects from raw material procurement to production and processing to the final product, and is realized by means of setting up standards, establishing testing and monitoring mechanisms, and so on.

In modern enterprise management, quality control is a crucial link, which is directly related to the enterprise's reputation and market competitiveness. By continuously improving and perfecting the quality control system, enterprises can enhance the quality level of products, reduce production costs, improve production efficiency and enhance market competitiveness. Therefore, all enterprises should pay attention to quality control work, continuously strengthen internal management, improve product quality, and provide customers with better quality products and services.