Hellow guys, Welcome to my website, and you are watching 공조냉동기계산업기사 필기, 공조냉동기계기능사 필기 (이론)_제5강 열량과 비열(17~18p). and this vIdeo is uploaded by 에듀강닷컴TV at 2016-06-21T09:08:52-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
