Hellow guys, Welcome to my website, and you are watching 초음파 물리 (SPI) 학습 가이드 (With Sonoline). and this vIdeo is uploaded by 소노라인 at 2018-06-14T19:01:16-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
