It is a large flexible packaging container used for transporting and storing bulk materials. It can produce single-mouth ton bags (feeding port), double-mouth ton bags (feeding port + discharge port), and large-diameter filling cap products. The product has been treated with gamma rays to meet the necessary sterilization requirements. It has the advantages of high tensile strength, puncture resistance, clean storage and transportation, and low cost. It is mainly used for large-capacity storage of liquid or semi-liquid products such as syrups, dairy products, juices, oils, daily chemicals, non-hazardous chemicals, etc., effectively reducing customer product packaging and transportation costs.