中國美食確實引人垂涎。呢,俄羅斯總統普京上周五到訪黑龍江省哈爾濱工業大學時表示,前一天品嘗了北京烤鴨,直呼「太好吃了」。
CD Bioparticles Provides A Various of D-Glucosamines For Research. We Win Customers' Favor With Attractive Prices And Reliable Quality. Order Now!
Types: Monomers、PEG Conjugations、Biodegradable Polymers、Block Copolymer Micells