... , smoothness PP corrugated sheet/pp board/ plastic pp sheet PP corrugated sheet is made by polypropylene.Its advantage is light weight but ... ,4,5,6,7,8,9,10,11,12mm and with over ten different colors for choices. In addition, electric ... addition, its water/grease-proof, anti-chemical characteristic has made it an inevitable material for building.2. For transportation/PackingThe toughness and hollow ...