What should I pay attention to when using plastic container bags

What should I pay attention to when using plastic container bags 1. Do not stand under the container bag during lifting operation 2. Please hang the hook on the sling or the central part of the sling rope. Do not slant, single side or slant lift the container bag 3. Do not rub, hook or bump the container bag with other items in the operation 4. Do not pull the sling back to the outside