The life # # the four recruit from cancer paper cups 】 (1) such as paper cups under fluorescent light appear blue, then prove fluorescent agent overweight. (2) choose BeiBi thick starched paper cups, high quality paper cup 72 hours, leakage of the poor quality of half an hour will water penetration. (3) ink contains benzene and toluene, buy outer no ink printing or printing less paper cups. (4) the cold drink cup and hot drink cup don’t misuse. Bubble burst of hot water, for some chemical composition full volatile after use.