天天躁夜夜踩很很踩2022-五十路熟妇高熟无码视频-亚洲AV成人影片在线观看-欧美黑人肉体狂欢大派对

Welcome to visit Changzhou Chengbang Chemical Co., Ltd. official website!

Collection ｜Homepage ｜中文版

More>>
Ammonium chloride
Product name: Ammonium chloride
CAS NO: 12125-02-9
Molecular weight: 53.4916 
EC NO: 235-186-4
Molecular formula: NH4Cl
InChI: InChI=1/ClH.H3N/h1H;1H3
Structural formula:
  Order                   Back