Hellow guys, Welcome to my website, and you are watching 2022 졸업작품 | 에너지신소재 화학공학부 | PET 순환소재의 물성개선 연구 [한국기술교육대학교/KOREATECH]. and this vIdeo is uploaded by 한국기술교육대학교 졸업작품전시회 at 2022-10-07T00:34:03-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.