1,3-Dimethylurea Mainly Used For Fiber Treatment Agent And A Crosslinking Agent, Which Does Not Have Formalin; Cellulose Nitrate Used Colloidal Agent; The Goods And The Resulting Mixture Was Used As A Preservative Formalin, Deodorant; Can Be Used To Having Ethylene Propylene Copolymer Acrylic Resin; Used As Pharmaceutical Raw Materials; The Product Added To The Saccharine Can Be Improved The Sweetness