Insulating materials have certain characteristics. What characteristics do they have in the end?  
First, chemical erosion resistance-nbsp;
Secondly, glossy, partially transparent or translucent & nbsp;
Thirdly, most of them are good insulators-nbsp;
Fourth, light weight and strong & nbsp;
Fifth, processing is easy to produce in large quantities, and the price is cheap - nbsp;
Sixth, nbsp is widely used, versatile, easily colored and partly high temperature resistant.
Seventh, plastics which can prevent moisture from storing goods can also be divided into general-purpose plastics and engineering plastics. They are mainly defined by the wide range of uses. For example, PE and PP are inexpensive and can be produced on a variety of different types of machines.