According to incomplete statistics, China's fast-growing milk carton (Tetra Pak) and beverage market generates about 45 billion discarded composite flexible packaging every year, which is equivalent to 450,000 tons of waste per year if calculated at 10 grams per package. Whether it is landfill or incineration, it will put more pressure on the increase of waste and the environment, and the related waste treatment cost will be nearly 2 billion yuan. In response to this situation, we have issued "one-step profile equipment for waste milk boxes" and "one-step extrusion molding equipment for milk boxes" to solve the problem of recycling waste milk boxes (Tetra Pak).