Hellow guys, Welcome to my website, and you are watching 용접결함의 원인은 무엇일까? 티그용접/배관용접/알곤용접/배관용접/자동용접/파이프용접/용접배우기/용접동영상/용접연습장/HS배관용접학원. and this vIdeo is uploaded by hs weld school at 2018-10-15T23:31:38-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
