The 'safety factor' is the ratio between the maximum load-bearing capacity of a product and its rated design load. The main focus is on 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 container bag. In similar standards both domestically and internationally, the safety factor is generally set at 5-6 times. Container bag products with a five fold safety factor can be safely used for a longer period of time. If anti UV additives are added, the application range of container bags will be wider and have stronger competitiveness, which is an undeniable fact.

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 container bag.