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The price of container bags is affected by the quality of the container bags. So, there are strict standards for ton bags in the international market. The emphasis of the standards varies. The safety factor is the ratio between the maximum load-bearing capacity of a product and its rated design load. Mainly looking at whether there are any abnormalities in the contents and bag body, as well as whether the connections are damaged, after repeatedly lifting several times the amount of content on the ton bag. When the sling is connected to the bag body, there are various forms such as top suspension, bottom suspension, and side suspension, and they are connected by stitching, so stitching is also quite important. Relying solely on the high strength of the sling, the base fabric and stitching cannot achieve a certain level of strength, nor can they guarantee the overall high performance of the ton bag.