Regulators should require disclosure of the source and growing conditions of tobacco used in all products and should consider product standards based on heavymetal content.
监管者应公开所有烟草产源，以及烟草产品中使用的烟草条件，同时考虑基于重金属含量的产品标准。
2
Ji 'nan Hengtong Co. workers to remind the user of the product manufacturers, with strong acid, strong alkali, heavymetal ions (such as aluminum, zinc, mercury, silver, iron, etc.) and is taboo.
Using organic chelating agent to response with several kinds of heavymetal ion, then the heavymetal ion will be reduced by forming the product with high stability and hardly dissolved by water.