Hellow guys, Welcome to my website, and you are watching [중2 물질의 구성] 7강. 앙금생성반응┃앙금을 만드는 이온 쉽게 정리하기!. and this vIdeo is uploaded by 은혜로운 과학생활 at 2020-06-03T00:24:44-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
