午夜射精日本三级,性一交一乱一伦一色一情孩交,消息称老熟妇乱视频一区二区,99久久伊人精品综合观看,亚洲精品无码久久久久AV老牛,性一交一乱一伦一色一情孩交,女人被狂C躁到高潮视频,熟妇人妻中文字幕,亚洲欧美成人一区二区在线电影,国产精品色午夜免费视频

Choline Dihydrogen Citrate is the Citrate of Choline( Assay35%), is one kind of nutrition extender and fat-removing agent. It is widely used in the food , drug and health care products as vitamin drug. Now, it can be used as substitute of Choline chloride and DL-Choline Bitartrate for children and pregnant women. Its pure product is white powder or crystal, and quality can meet the standards of FCC4 (Food Chemicals Codex and USP.
Quality Index