Zhejiang Zhuxin Machinery Co.,ltd is willing to cooperate with customers in Asia to open up the market. We provide high quality recyling machine products, preferential factory prices, and professional after-sales services to provide impetus for the rapid development of your company! 3layers MACCHI film blowing machine Blown film extrusion lines are commonly used to extrude plastic films for flexible packaging industry. In this article,we will delve into the intricacies of the blown film machine.