Have you ever imagined how many things are made of plastic? Check this around you immediately and you will find there are thousands of things that you have used in the past 24 hours that are made from plastics. Nowadays there are about 600 billion pounds of plastic are made and consumed every year, but the market is still growing about 5% year by year. Plastic is one of the most important materials that is widely applied in our normal life. Plastic is around us.