... . toughness is good 4. easy to design much prodouct. polypropylene (pp) plastic sheets , we can call it " design assistant ." because we can ... use it design more beautiful product. forexmple : DIY shelfs, box, clip ... -proof and nontoxic5 Light weight, save material, can be recycled use, good material to replace paper bags6 Antistatic, can be used ...