If there is a sign, it will be marked on the back of the outer packaging box, such as the recyclable sign. If there is no logo on the outside of the package, there are generally two situations. One is that the products do not meet the requirements of those marks at all, and the other is that the manufacturers have not applied these marks. In the final analysis, it is because there is no mandatory requirement for the use of these signs in China. For example, the food safety 3C mark is mandatory, but there is no mandatory environmental protection mark and recyclable mark. ...