plastic packaging and styrofoam packaging的定义

（1）plastic packaging

http://www.plaspack.com/home.html

（2）styrofoam packaging

StyrofoamStyrofoam™ packagingpackagingpackaging is a a type of packagingpackagingpackaging made of a polystyrene material that is cheap and very effective at protecting packages. StyrofoamStyrofoamStyrofoam™ packagingpackagingpackaging may come in a variety of sizes and shapes, chosen specifically to help protect an item at risk. In some cases, the packagingpackagingpackaging may be made to fit the product and keep it from shifting in transit. In other cases, the StyrofoamStyrofoamStyrofoam™ packagingpackagingpackaging may fit loosely in the box. It can even compose the entire packagingpackagingpackaging for the product, such as in the case of Styrofoam™ cups.

The pieces of StyrofoamStyrofoamStyrofoam™ packagingpackagingpackaging that simply fill