日韩欧美国产另类久久久精品_欧美日韩免费性爱视频_亚洲日本成年在线看_а√天堂资源中文最新版地址_国产ⅴa免费精品观看精品_漂亮人妻被强中文字幕_欧美野战青青久久_毛片24种姿势无遮无拦_亚洲av第一区第二区_免费AV电影在线观看

language:

Build a characteristic pharmaceutical industry chain

Products

Tel:86 533-5414988
[email protected]

Products

Location:Home - Products
DIC

Chemical Name:N,N’-Diisopropyl Carbodiimide

Structure:

Application:Dehydration condensing agent for the synthesis of pharmaceuticals

On a:DCC