Hellow guys, Welcome to my website, and you are watching 즐거운 과학, 코딩과 로봇에 빠지다 ㈜프로보 류제홍 대표_젊은그대[산업방송 채널i]. and this vIdeo is uploaded by 산업방송 채널i at 2019-08-11T19:10:02-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
