Why is the aluminum foil of rolling mill not a clean workshop?

In this process, a lot of aluminium scrap and oil pollution will be produced, which is difficult to avoid completely. Aluminium scrap and oil pollution will pollute the workshop environment and affect the product quality. Therefore, semi-clean workshop design is usually adopted in aluminum foil production workshop of rolling mill, and certain measures are taken to reduce the generation and spread of aluminium scrap and oil pollution, so as to ensure a relatively clean production environment. At the same time, the production of aluminum foil by rolling mill needs strict quality control and testing to ensure the quality and safety of products.