This is environment-friendly bag which can substitute existing plastic bag. They are made of corn starch and comparing plastic bag, there is no problem in quality with drawability and elongation. When plastic bag is buried , it can not be decomposed in short period and when burnt up, it would produce environment pollutant. However, biodegradable shopping bag made of corn starch is environment-friendly bag which is not harmful to human body and environment and will be decomposed into compost. It is also not harmful to nature which may cause to decrease carbon dioxide and greenhouse gas and...