久久久久国色AV免费观看性色,日本少妇脚交免费视频,午夜寂寞少妇免费视,亚洲高清无码在线观看你懂的

The customization of plastic packaging bags is the inevitable result of technological development, but there are still many drawbacks in this industry. We need to have a certain understanding of these shortcomings in this industry, so let's take a look now.

In the current industry, when we visit, we will find that the process steps for manufacturing products are relatively simple. Generally, we can use film blowing machine or bag making machine, polyethylene material or recycled material to mass produce. For some complex products, we cannot produce them. Secondly, the country is also paying close attention to the plastics industry, but the supervision of plastic bag factories across the country is not strong enough, and there is no specific and appropriate plan. In this way, not only the quality of plastic bags cannot be guaranteed, but a new round of white pollution has come.

In order to change this phenomenon, we need to accelerate the pace of development and research on plastic bags that are not harmful to the environment. Secondly, the state needs to establish a complete supervision system in order to impose effective penalties on some violations of laws and disciplines.